John Bowen's Custom Moog Sonic Six at NAMM

Pic of John Bowen's custom Sonic Six at NAMM sent in via Atomic Shadow.

Update via Seth in the comments: "The bottom row is a Sequential Model 700 Programmer and a Model 800 Sequencer. The sequencer was modded to add a patch bay when it needed some repairs. "

Sequential Circuits - The Prophet Synthesizer - Large Advertising Flyer

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Sequential Circuits - Prophet Synthesizer Advertising Flyer

Double sided - Has information about the Model 700 Programmer and the Model 800 Sequencer

Large Format - Classic black and white styling

Measures 13.5" x 8.5"

Condition: Good/Very Good Brochure is clean, flat & complete. No creases, rips, tears or writing. Has some corner wear and light general handling wear. No perfect but still nice. (about a B grade)"

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1978 Sequential Circuits Prophet-5 Brochure

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This original vintage Sequential Circuits Fold Out Brochure contains information and picture’s of the the Sequential Circuits Prophet-5 synthesizer, Model 700 Programmer and Model 800 Sequencer.

This is a must-have for any vintage synthesizer/Sequential Circuits collector as these are getting very hard/impossible to find these days.

This Fold Out Brochure has no highlighting,underlining or any stamps in it. This original Brochure is in very good condition, see the picture's for more detail."

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Sequential Circuits Model 700 Programmer and Model 800 Digital Sequencer Ad

Ad from 1977 featuring Rick Wakemen scanned by Retro Synth Ads, where you'll find the write-up including a couple of google map images of the two Sequential Circuits facility locations.

1980 Sequential Circuits Model 700 Programmer and Model 800 Sequencer Ad

via Retro Synth Ads where you'll find the write-up.

Now that's a synth cake.

Sequential Circuits Model 700 Programmer and Model 800 Digital Sequencer

via Retro Synth Ads

"64 Synthesizers for $1195"

Ad from 1977

Sequential Circuits Prophet-5 Fold-Out Brochure

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This original vintage Sequential Circuits Fold Out Brochure contains information and picture’s of the the Sequential Circuits Prophet-5 synthesizer, Model 700 Programmer and Model 800 Sequencer."

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A Bit of Prophet 5 History

John Bowen recently posted the following on AH. I asked him if it would be ok for me to put it up as a post and he said yes. This is in regards to the the 1978 NAMM show and the birth of the Prophet 5 and 10. The Prophet 5 was the first fully programmable polyphonic synthesizer. Title link takes you to a shot of the Audities Foundation Prophet 10, which also came up on the thread (note the Prophet 10 label).

"The original Prophet was a 5 voice. Dave Smith thought to add the second
board (which was just another standard 5 voice board mounted above the
first) as an option, but the synth shown at that 1978 NAMM was a 5
voice, which Dave had barely gotten working earlier that morning (after
working on it almost nonstop the days & nights leading up to the show).
I was at the booth at 10 am as we opened the show, and somehow word had
gotten out about the possibility of us having a programmable
polysynth...we had most all the major manufacturers represented there,
right when the show opened, asking about it. We didn't know what time
Dave was going to show up, and tried to stay mum about the product,
while more and more people showed up. Some time after noon, Dave arrived
with the Prophet under his arm, and we cleared a space for it. He had to
do some quick tweaks and checks, and when he powered it up, it worked
right away (but was pretty badly out-of-tune).

As Michael says, we had enough orders after the show ended to feel great
about the Prophet 5's future, and took those orders to the banks to get
some investment capital to build them.

There were a few persons who Dave had already been selling the Model 800
(sequencer) and Model 700 (programmer) to, one of them being Pat
Gleeson, and when he saw there was an option to have 10 voices, he
immediately order two in that configuration. Dave hadn't really tested
the heat issue with the boards layered, but the first several Prophet
10s made soon proved obvious that there was a tuning instability
problem. After Dave looked further into the situation, he decided it was
not going to be a viable option, so we did recall them. I seem to
remember there were 6 in total sent out, and I the one at Korg R&D was
the only semi-functional one still around (however, there is now someone
doing restoration work on a different single manual P-10 for a museum).

But there was no 'desperate measure' requiring removal of one of the
boards, nor a change of the name...it was always a Prophet 5, and if the
optional 5 voices were to be added, a different sticker was made for the
front panel. Simply an option that didn't work out.

regards,
John Bowen"

The PPG 1003 "Sonic Carrier" - World's First Programmable Synth?

via Wolfgang Palm on Facebook
Be sure to see the video below.

"This was the first programmable synthesizer (1977)."

Programmable as in patch memory. The 1003 was a programmable monophonic synth with two oscillators, digitally controlled keyboard, and it was duophonic.

But was it the first?

Excerpts via Part 4 of the PPG Story:

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Final Set of A-Z of Analogue Synthesisers

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via this auction

The listing is from the author Peter Forrest who states this is likely the last set.  These are great books and imo the most comprehensive.  Click on the pics to get an idea of what they are like.  Peter also has other items listed including The Museum of Synthesizer Technology and Synthesizer von Gestern II.

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Sequential Circuits Model 700 Programmer

images via this auction

inside...

Sequential Circuits Model 700 Programmer SN 0134

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via this auction

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Sequential Circuits Model 700 Programmer

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via this auction
yousenditworks (RSS)

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The Glimpse - Don Muro

YouTube via jdwallpub | February 02, 2011

"Recorded in 1979 using the Sequential Circuits Model 700 Programmer as a step sequencer controlling an ARP 2600 and an ARP Odyssey. Sounds were enhanced using a Roland Space Echo and heavy tape saturation."

Dave Smith Was an Ironman Triathlete

In case you missed it in this post, Roger Linn noted Dave Smith was "an avid athelete, cyclist and triathlete. He actually participated in the Hawaii Ironman Triathlon in his younger years..."

@birdkids reminded me of an article on the development of the Prophet VS archived on the WaybackMachine. In it, Chris Meyer mentions Dave was in Hawaii prepping for the tournament during that time. I thought it was interesting and worth sharing. I captured it below.

"Date: Wed, 15 Jan 1997 07:55:41 -0800
From: Xrystal
MIME-Version: 1.0
Subject: Birth of the Prophet VS

I thought the following might be of interest to you. Xrystal
_____________________________________________________________________


The Birth of the Prophet VS

By Chris Meyer, ex-employee of Sequential Circuits

reprinted from the VS WaveWrangler User Guide by permission of Interval Music Systems,
©1991 Interval Music Systems.

It all started somewhere in 1985. We were still working on the Prophet 2000 sampler,
and as resident historian (in other words, I had the most magazines and manuals) another
engineer was asking me to explain how various instruments performed crossfades. I had
finished discussing the Fairlight, and had moved on the PPG - explaining its wavetables,
and the ability for it to scan a group of waves first in one direction and then back again,
While I was scrawling this back and forth motion in my notebook, suddenly a little twinge
went off in the back of my head, and myhand drew the next line arcing down the page.. and the
concept of crossfading beween waves in two dimension, not just one, was born.

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Roland Museum Germany Massive Synthesizer Selloff - Most Gear for Sale in a Single Auction

Note: Auction links are affiliate links for which the site may be compensated.

This one in via Marko of Retrosound.de.

26.000,00 Euro gets it all.

via this auction

Someone needs to contact the Guiness Book of World Records. Longest list of gear for sale ever:

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New Analog Mafia RC-808 from Roland's "Mid-O Series" Developers and the "Failed" Roland TR-808

Published on Aug 8, 2019 藤本健

Update: demo above spotted and sent in via Soviet Space Child.

This post is a bit of a doozy so bear with me. :)

First we have a new software model of the TR-808 from the original developers of the 808:

"The RC-808 'Re-Create the 808' emulates the original TR-808 sound with analog manner synthesis. As the name implies, it is with respect to the original 808 sounds which is a criterion for sound synthesis as a vintage. Starting from this criterion, explore the multiverse of sounds, stretch out your vectors, to find out new criterion of your own. Yes, it can take you to the new sonic worlds that are completely different and yet so close and familiar to you.
Hence it is not a drum machine but is a drum synthesizer. No samples nor effects processing are being used, just genuine synthesis only, all in analog manner.

The sound source employs DCO which is in this case Down Chirp Oscillator, combined with a noise source that outputs various kinds of noises including metallic noises. There is also a infinite point wave shaper, a variable filter bank, infinite point envelope generators etc. With maximum 8 partials per voice, it allows sound designing in subtractive synthesis manner which is familiar to all and yet still with vast space beckoning to be discovered.
Thanks to this flexible architecture, all instruments can have Open and Close variations just like Hi-Hats or cymbal choke performance. Coupled with piano-roll sequencer utility this brings new expressions with gate time programming, that you don’t see on a drum sequencer..."

You can download the Windows version here. A Mac version is coming.

Second, the following is some info on the people behind the RC-808 (pictured above) via Vector808:

"We the Analog Mafia, lead by Tadao Kikumoto, is the original R&D staffs who developed the Mid-O Series from Roland Corporation. We would like to express full gratitude and respect to all the people who were in Roland, and supported us at that time.

In above photo, from left to right, we the Analog Mafia are:
Jun-ichi Kadoya: Roland 1977 - 1983, Mid-O Series software / hardware engineer, still is a programmer
Hisanori Matsuoka: Roland 1979 - 1995, Mid-O Series software / hardware engineer, still is an engineer
Kyokazu Fujiwara: Roland 1978 - 1981, Mid-O Series sound source, now a general manager of a software maker
Tadao Kikumoto: Roland 1977 - 2009, Mid-O and V-Series R&D, now Silent Street Music concept maker and promotion
Yoshiro O-e: Roland 1978 - 1988, System-700 and Mid-O Series R&D, now operating a chemical company

Also are:
Hiro Nakamura: Roland 1975 - 2000, CR-68, CR-78, TR-808 sound sources, engineer
Atsushi Hoshiai: Roland 1982 - present, sampling for TR-909, engineer

We all are still analog manias ;)

Because we are independent from Roland Corporation, they nor we can not answer to any kind of inquiries about us and our deliverables including this website. Thank you so much for your understanding and cooperation for everything.

Tadao Kikumoto is currently also working busy on another equally innovative project, called SSM - Silent Street Music. It is multi-channel concurrent streaming and listening technology that allows zapping through multiple music or lecture sources instantly. Join us on its exclusive introduction website (at the moment the website is only in Japanese language)"

Third, vector808 has a fascinating historical account covering the development of the Roland TR-808 starting with the x0x series, or as the original Roland developers referred to them, "The Mid-O" series. The following are three excerpts followed by a link to the full article. Note how they perceived the TR-808 was a failure compared to the LinnDrum in the second excerpt.

One:

"The Beginning
In 1983, a number of instruments were released with MIDI, the standard that I was involved in. After the tough times with all the difficulties of development, Roland launched the TR-909 the successor model of TR-808. Yamaha made debut of the ground breaking DX7, a serious digital synthesizer and again with MIDI. It was the opening of the new chapter in the electronic musical instruments, the dawn of full digital synthesis.

Roland then was still a new emerging enterprise, and did not have enough resources to pursue digital technology. To combat the situation, the Fundamental Research and Development Department was established."

Two:

"To meet the low target price, I employed oscillation technique of pulse wave modulating the simple T-network bandpass filter. By short circuiting the resistors in the T-type network for the certain initial duration with transistors, it was possible to raise the frequency. This allowed us to enforce the attack sound compared with conventional rhythm boxes.

But the initial reputation of the 808 was nothing but crippled as it was compared with the Linn products. Furthermore, the sound had insufficient impact or punch at the beginning, which resulted to have pronounced fundamental frequency 60 Hz. But then again, it was this prominent fundamental which attracted the attention of later time hip-hop and EDM artists, and they gave a name to it as “Deep Decay”. This led to the rediscovery of Mid-O Series. The long decay sound was made possible by decay parameter that I added to show at least as a sign or as an evidence of the 808 being a synthesizer. Even inside the company this was regarded as going too far, but later it became one of vital identities of the 808.“

Three:

"If you liken it in the picture art world, the TR-808 sounds are simple line drawings and illustrations so to speak. It puts more weight on showing essence simply rather than realistic photography. The traditional painting of Japan known as Ukiyo-e is a pictorial method and manner that is primarily made of outlines derived from specification of printing and paints. This manner has its own limits, and hence is a vector of criterion. Katsushika-Hokusai, famous for his Mr Fuji pictures, created The Great Wave off Kanagawa（神奈川南沖浪浦 Kanagawa Minami Oki Nami Ura）. In that piece of work, he threw off the photographic details into abstraction that boldly enhanced the great waves by outlines, and made contrast with a pointed Mt Fuji. This manner derived from its own limits is something impossible with realistic paintings that put priorities on details.
The inventor of the bass drum must have done trial and errors like enlarging the diameter or making the membrane thicker to produce fat low sound. Large portion of the beater strike energy to the skin however must have been consumed by uneven fractional vibration or parasite vibrations, resulting unwanted muddy sound. Also, the drummer spends a long time doing a lot of work on damping with blankets and else in order to suppress the unnecessary resonance with the body or with other drums. But once adequately used, this dirt will become important part of the sound, its identity, reality, and criterion.

The TR-808 bass drum was without the reality of the drums but was like an enhanced great wave depicted in the Hokusai’s picture. It is with abstraction of the details, but then again, also with dynamic and ideal low sound. It lacks with the attack impact and the release decay of sampling drum reality, but the artists chose its ideality."

You can find the full article here: https://vector808.jimdofree.com/home/episodes-of-the-mid-o-series/.

P.S. Not sure if the brand is Analog Mafia, vector808 or both. Giving this post both labels below.

VEMIA November 2000 catalogue - vintage synths & prices

via this auction

"From ten years ago, a paper catalogue from the VEMIA auction. 24 pages, tiny print, and not well printed - but just about readable everywhere. A couple of illustrations (not high quality!!) - of a massive Roland System 700 and the even bigger Yamaha EX42.

Fun to look at the prices - many of them not the final bids, but all already over their reserves (there are no hidden reserves in this auction) .

That means that in November 2000, you could have had a chance of winning the following (with prices in pounds sterling):

Two Siemens V72s, 440GBP; Vortexion tube amp 23GBP; Roland CR-78 230GBP; Roland TR-808 500GBP; Crumar Jazzman 95GBP; Hohner Clavinet 1 140GBP; Clavinet/Pianet Duo 260GBP; Wurlitzer EP-200 450GBP; Ashly SC-68 140; AKG BX20E 100GBP; Six Audio & Design SCAMP modules 130GBP; BBC EQs in a rack 50GBP; Binson Echorec Baby 280GBP; Binson Tube Reverb 350GBP; Carlsbro Flanger 85GBP; Dynacord CLS222 145GBP; Dynacord TAM19; Echolette SEV66 Vocoder; Echoplex tube model 240GBP; EH Small Stone original 55GBP; EH Talking Pedal 260GBP; Four EMT 256 II compressors and two de-essers 755GBP; Moog 12-Stage Phaser 580GBP; Roland Funny Cat 160GBP; Roland RE-201 190GBP; Roland SRE-555 240GBP; Ursa Major Space Station 450GBP; Reslosound Ribbon 75GBP; two Sennheiser MD421s 250GBP; two Tannoy mics from the House of Commons 45GBP; Two EMS Presto patches 60GBP; Korg MS-03 110GBP; Korg MS-04 110GBP; Optigan Stereophonic Deluxe 220GBP; RSF Kobol Programmer 450GBP; BBC Outside Broadcast four-channel passive mixers 90GBP; Roland VCA800 / CPE800 units 115GBP; Telefunken 12/2 mixer 200GBP; ARP 2600 Blue Meanie (aka Blue Marvin) 1450GBP; EMS Synthi AKS with all EMS mods 1770GBP; EMS Synthi-E 600GBP; EMS VCS3 1900GBP; Korg MS-50 680GBP; Roland System 100M five-module system 880GBP; Roland System 700 complete 9950GBP; ARP Odyssey white-face 480GBP; ARP Pro Soloist 150GBP; EDP Wasp 280GBP; Hohner Bass 28GBP; Korg M500SP 75GBP; Korg Sigma 180GBP; Moog Minimoog 900GBP; Moog Prodigy 270GBP; Oberheim OB-1 460GBP; Octave Cat 330GBP; OSC OSCar 840GBP; Roland MC-202 200GBP; Roland SH-101 190GBP; Roland System 100 101 330GBP; Farfisa Compact Duo 500GBP; Hammond F-100 Extravoice 150GBP; Moog CDX 430GBP; Yamaha EX42 GX-1 look-alike 1250GBP; Vox Continental 300 240GBP; Yamaha YC-45D 280GBP; Elka Rhapsody 610 85GBP; Gleeman Pentaphonic 1270GBP; Moog Memorymoog Plus 1450GBP; PPG Wave 2.3 800GBP; Roland Jupiter 6 580GBP; Roland Jupiter 8 (JP8) 680GBP; Roland VP-330 400GBP; SCI Prophet 5 rev 3.2 760GBP; SCI Prophet 5 with Kenton MIDI 900GBP; Korg SQ-10 250GBP; Roland CSQ-100 34GBP; Roland MC-4 250GBP; a hundred CEM 3396 chips 100GBP; Leslie 147 360GBP; Ampex 351 980GBP; Studer C-37 300GBP."

Rosen Sound Synth Demos & Restorations

Published on Jul 28, 2018 Rosen Sound

This one in via Soviet Space Child.

www.rosensound.com/rentals

Playlist:
1. Oberheim OB-X - Rosen Sound Demo

The OBX was the first major "answer" to the Prophet 5 synthesizer, and at least in our opinion, was the best answer anyone could've given.

The OB-X is based on the basic design of the (S)ynthesizer (E)xpander (M)odule also from Oberheim. Like the SEM, it features two discreet VCO's with saw and pulse, two envelopes, and the low pass section of the SEM filter. It also added noise, a release control, and cross modulation (similar to the Prophet's cross mod). The prophet's cross mod was a bit more dynamic, though. A flexible LFO section is also featured.

None the less, the OBX is in a species all of it's own in many ways. It's one of the very few mostly discreet programmable polyphonic synthesizers, and more than that spec, it sounds unique and absolutely marvelous.

Our unit features encore midi

Book your rental package with Rosen Sound and see the rest of our synth catalog at www.rosensound.com/rentals

2. Moog Minimoog - Rosen Sound Demo

3.SCI Prophet 5 - Rosen Sound Demo

In a lot of ways this needs no introduction. One of the most iconic poly synths ever made, and the first synth to offer true programmability with polyphonic architecture.

The Prophet 5 offers your basic amenities in a poly synth with 5 voices each with 2 VCO's, a low pass VCF, a VCA, two EG's, one LFO with multiple wave shapes available, with POLY MOD as the icing on the cake. This lets you make FM type sounds and is part of what makes the prophet 5 unique.

Our unit features factory midi

4. Oberheim Four Voice - Rosen Sound Demo

This in our opinion is one of the finest synthesizers ever made in terms of overall sound. The features are of course many and the synth as a whole is very flexible and powerful, but the sound it outputs is nothing short of mesmerizing.

The FVS features 4 Synthesizer Expander Modules (SEM) each representing a polyphonic voice. This means for one patch, each SEM must be setup identically. This may seem like too much, but it's actually a very enjoyable process that causes you to think different about the patch your making, the polarity of your modulation per voice, and subtle differences you can set.

The synth can also be used in a powerful unison mode, allowing each SEM to be adjusted separately for a crazy 4x dual oscillator synthesizer each with a multi mode filter to be fired at once.

Each SEM is as or more powerful than your standard mono synth, featuring 2 oscillators with saw and pulse each, PWM, FM, 1 LFO, two EG's, a bi-polar filter modulation control, and the sweetest Oberheim filter ever made featuring a bandpass filter and a sweepable LP-HP filter. These filters are special in the way that when the resonance is turned up, there is no loss of volume or low end.

Additionally, our FVS is an early model with no programmer (a feature loathed by many anyway). Instead, it features 2 dual mini sequencers with a common clock available. This means you can do 8-step 4 note poly sequencing between the four SEM's, or split the keyboard with one sequencer playing 1 SEM and 3 note chords on the other side of the keyboard.

Functionally, our FVS is very much in tune and has been stabilized to survive travel and tuning consistency. It is in tune as soon as it's turned on, and we provide a quick start guide for our rental customers to learn how to easily program and tune the machine.

Our FVS also features MIDI in via a modified YARN's module installed inside. This allows through basic midi and if desired (more complicated) midi scripts to play it polyphonically (default on boot), sequence each SEM assigned to a separate channel (enabling MPE), or played in Unison. All of these features can be harnessed by utilizing SYSEX or the Yarns editor, all which is provided on a thumb drive for rentals.

5. Moog Memorymoog - Rosen Sound Demo

To start, let's forget the internet-lore or an "unreliable" and "impossible to tune" machine. Our service shop is known worldwide for our work on Memorymoogs and stabilizing them for real production use.

Now, let's introduce you to (what we consider) the pinnacle of Moog synthesizers. With 3 oscillators + ladder filter per voice, flexible and intuitive modulation, and a knob per function, the Memorymoog is not a force to be reckoned with, and is in what we consider to be the top 3 best sounding synthesizers ever made.

From lush pads, 18 oscillator unison leads, heavy bass, and even gentle timbres, the memorymoog is sure to be a staple piece for your session in any genre on music. Plus it has everyones favorite feature: an arpeggiator!

Our rental memorymoog will arrive with an expression pedal and 12 custom patches (87-99) made by our resident in house programmer, Eli Goss. These 12 patches are the juice that will fuel modern productions to achieve sounds unobtainable by any other synth, with plugins not even worth a mention.

6. Oberheim OB8 - Rosen Sound Demo

One of our staple synths in the collection. The lore of the OB8 is that it's a less-exciting OBXa, however, with some choice mod's which we've done to ours, they are sonically identical.

The OB8 is one of the most flexible synthesizers available, which includes deep LFO routing from the front panel, and a PAGE 2 function that transforms every knob and button on the synth to do even deeper modulation, including quantized LFO's, musical "OBXA" style detuning, envelope routing, and more.

Additionally, our OB8 has been fitted with a Pratt & Read keybed, which brings the true feel of American poly synths to the experience, while also having the amenities provided by the B5 EPROM including factory midi.

7. Sequential Circuits Prophet 10 - Rosen Sound Demo

The Prophet 10 is more than just 2 Prophet 5's in one box; featuring an active EQ per voice, deeper modulation, and more performance capabilities with it's dual manuals and CV pedal inputs. This prophet 10 also features midi in and out.

8. Oberheim Four Voice Sequence

You could do an entire score with this #oberheimfourvoice. With quad poly sequencing and split modes the sky is the limit. Available for rent through us! Contact us for rates and availability. And yes, it has midi!

9. Prophet 5 Rev 3 Restoration

10. Juno 106 Multiboard removal

11. Juno 106 80017A Chip Failure - What To Check

In this video I go over a couple things to check not only to see if your 80017A chips are failing, but also other potential failures of the juno, including failure of one of the MC5534A dual DCO chip.

This video also applies to other models, such as the MKS 30, HS 60, GR 700 and some others.

If you would like Rosen Sound to service your Juno, please contact us at contact@rosensound.com

DK SYNERGY II+ SYNTHESIZER, KAYPRO II & SYNHCS SOFTWARE

synergyII timbres Uploaded on Sep 5, 2010 xenmaster0


s 2 demo 1 441 final 320x240stream Uploaded on Sep 5, 2010 xenmaster0

Warning: this is a long post and can't be paged with the "click for more" link otherwise the videos will not load. Also, no time to parse the entire listing, so everything captured below for the archives.

via this auction

"DIGITAL KEYBOARDS SYNERGY II+

WITH KAYPRO II & SYNHCS 3.182 PROGRAMMING SOFTWARE, 14 FLOPPY DISCS OF SYNERGY TIMBRES, and 3 SYNERGY ROM CARTRIDGES

This is the legendary Synergy synthesizer. It comes with the Kaypro II CP/M computer I bought with the Synergy and the SYNHCS software used to program the Synergy. Three Synergy ROM cartridges are included, WC-1 and WC-2, the Wendy Carlos Voice cartridges 1 and 2, and the VCART 4 cartrdige, along with a null modem cable that you use to connect the Synergy synthesizer with the Kaypro II computer.

Using the Kaypro II computer running the Synergy Host Control System software (SYNHCS), you gain access to the full capabilities of the Synergy synthesizer. With the Kaypro II computer + SYNHCS software, you can program the Synergy synthesizer to generate any kind of sound you can imagine. Then you can save the timbres you create on floppy disk and organize those timbres into banks of sounds, and send them to the Synergy synthesizer. (Originally the Synergy was sold with ROM cartridges but with the Kaypro you don't need 'em because you can send new timbres to the Synergy from the Kaypro. I am, however, also including one original Synergy ROM cartridge.)

You will also get the complete set of 13 Synergy voice library banks on floppy disk, L1 through L13 (on 7 floppy discs) as well as the 6 Synergy VCart voices banks 1 through 6 (6 floppy discs). You also get the WC-1 and WC-2 voice banks on floppy disc. Each synergy ROM cartridge or CRT file holds 24 timbres. So you get the complete set of 20 x 24 voices, or 480 Synergy voice library timbres. This is the complete set of timbres that were offered for the Synergy II+. You also get the Wendy Carlos WC-1 and WC-2 voice cartridges (these are duplicates of the WC-1 and WC-1 voice banks on floppy disc) plus the VCART4 cartridge. The VCART4 cartridge has been disassembled so that you can resolder the socket to use a ZIF (zero insertion force) socket if you prefer, and burn your own ROMs and swap them out in the ZIF socket. I'll include information on how to do that. As a practical matter, the Kaypro II computer can transfer voice files to the Synergy II as fast as swapping out EPROMS, but it's nice to have the ability.

The SYNHCS control program included with this Kaypro is the latest version, from October 11 1985, version 3.182. You can see the version number in one of the photographs of the Kaypro II screen. It's later than the version 3.15 SYNHCS that sold with most Synergy/Kaupro II combos. SYNHCS V 3.182 fromOctober 1985 is the final version of SYNHCS, and includes menu options the earlier SYNHCS didn't have -- the earlier version 3.15 dates from September 1983. This later version October 1985 version 3.182 of SYNHCS has features the earlier SYNHCS didn't have, and it's not generally available. I got it from Stony Stockell. I'm pretty sure that only a handful of other people have this latest final version of SYNHCS from 10/11/85.

There are 18 floppy discs all told: 7 discs containing Synergy voice banks 1 through 13 (2 banks per disc, so 7 discs there total) and Vcarts 1 through 6 (6 discs there) and the Wendy Carlos 1 and 2 Vcarts on a single floppy disc. along with the Kaypro CP/M 2.2 boot disk to boot up the Kaypro II computer and a disc of CP/M utilities, like UNERASE and some other very useful utilities. That makes 16 floppy discs. I've also included a CP/M 2.2G boot disc in case you want to use another model of Kaypro II. The boot discs differed depending on whether your Kaypro II had ROM 81-149C, ROM 81-232, or ROM 81-292. All that is spelled out in detail in one of the information sheets I'm including with this Synergy II+. I'm also including SYNHCS V 3.12, the earliest versionof SYNHCS, in case you pick up another Synergy II with older ROMS.

Some of these Synergy voice banks were designed by Wendy Carlos, and all of 'em sound gorgeous.

The Synergy synthesizer boasts a unique sound, unlike that of any other synthesizer. It can caress your ears with silken delicacy or hammer you with brutal rancor. The Synergy can sound raucous or subtle, and it can change from one to the other as you hit the keyboard harder. There's a reason for this: it has arguably the most complex and sophisticated synthesizer architecture ever created, unparallelled evern today. The Synergy's amplitude envelopes are more complex, its oscillators are arranged in a more sophisticated way, and its advanced features like digital noise source, quasiperiodic vibrato and digital formant filter still have not been fully duplicated by any other digital synthesizer -- even today."

"THE BELL LABS DIGITAL SYNTHESIZER AND THE SYNERGY II+

The Synergy is based on the Bell Labs Digital Synthesizer designed by Hall Alles. The Bell Labs Digital Synthesizer used a remote computer to program the synth, with access by a different kind of port (RS-488 serial port, then common for programming lab equipment over a serial link). The remote computer at Bell Labs had to use software written by the composer (Laurie Spiegel, for example, whowrote programs on a DEC minicomputer in the then-new C programming language to control the Bell Labs Digital Synthesizer) to program the synth. When Digital Keyboards licensed the design of the Bell Labs Digital Synthesizer, they also built an 8-bit microcomputer that could program a version of the Synergy called the GDS.

About 700 Synergy I synths were sold all told, but less than 100 are still working today. A small handful of (I believe no more than 6) GDS systems were built in addition to the originl non-programmable Synergy I synths: GDS stands for "General Development System." These were versions of the Synergy with 16 front-panel digital sliders to control parameters of the synthesizers that hooked up to an associated CP/M computer thta used 8-inch floppy discs. With the GDS, you could program the Synergy and store voices on 8" disk via an S-100 buss CP/M computer based on the Ohio Scientific Challenger. Wendy Carlos bought a Synergy General Development System, Stockell kept one in his basement, Klaus Schulz had one, and someone else reportedly bought one (I don't know who).

When Kaypro started producing the Kaypro II CP/M computer in the early 1980s, Stony Stockell, the lead engineer on the Synergy synthesizer, saw an opportunity to replace the cumbersome General Development System with a cheaper setup for programming timbres on the Synergy, so he hired someone to write the Synergy Host Control Program in Z80 assembly language to program the Synergy using the Kaypro II instead of the S-100 buss IEEE 696 CP/M computer used with the GDS.

The new SYNHCS software was much more straightforward and didn't require any programming on the user's part. The Kaypro II was a standalone computer running CP/M, once again easy to use (unlike the Bell Labs minicomputers, which the user had to program to get anything out of 'em, even to send a note to the synthesizer!) and the Kaypro used a simple null modem cable linked to the RS-232 serial port in the back of the Synergy to program timbres, download and upload voice banks, and control the synthesizer's many subtle functions from the Kaypro.

The general method of programming involves pressing a specific button on the front of the Synergy to access a given function, then typing in a value in the Kaypro II to adjust the synthesizer parameter. Once you get the sound you want, you save it on the Kaypro floppy disk as a single .VCE file. Then you can load the VCE file off the Kaypro floppy disk and send it to the Synergy to recreate that timbre whenever you want. The SYNHCS program lets you arrange timbres defined by VCE files into banks which get saved as a single large files called a .CRT files, so SYNHCS combines the functions of synth programming and a synth librarian (and remember that this was back in 1981-1982!).

There was no such thing as the MIDI protocol when Hal Alles designed the Bell Labs Digital Synthesizer in 1974-1975, and no such thing as a finalized MIDI spec when Stoney Stockell adapted Alles' design into the Synergy in 1978-1980 for Crumar's Digital Keyboards subsidiary.

MIDI became a big deal between 1981 and 1984, so Stockell retrofitted the Synergy synthesizer with an add-on circuit board that added full MIDI in and out capabilities. This was the Serial I/O board, which Crumar sold for owners of the original Synergy I synth to upgrade to a fully programmable Synergy II+ along with the SYNHCS software and the voice library discs and the Kaypro II. These new modified versions of the Synergy were called the Synergy II+. This Synergy II+ of course includes a MIDI IN and OUT port, along with the RS-232 serial port for programming the timbres via the Kaypro computer.

The last and most sophisticated version of the SYNHCS software was version 3.182, which is the version I'm including with this Synergy II+ synthesizer. To quote from the manual PRELIMINARY OPERATION OF THE SYNERGY II WITH COMPUTER, "The SYNHCS version 3.xx significantly extends the capabilities of the Synergy II+ synthesizer even beyond the original General Development System." Yes, this combination of the Kaypro II plus null modem cable plus Synergy II+ plus the final SYNHCS version from 1985 gives you more abilities than Wendy Carlos had when she programmed the Synergy voices for her albums Digital Moonscapes and Beauty In the Beast.

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