Key Clique Wedding Band ROM Cartdige for DX7

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

via this listing

Additional Perfect Circuit listings

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Ultra RARE Bo Tomlyn's Best of the USA Yamaha DX7 Cartridge

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

via this eBay listing

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Solton MS3 + Alesis MiDiFEx (demo)

video upload by General Midi Guy ⚡

This appears to be the first post to feature the Solton MS3.

"Solton MS3 arranger/sound module + Alesis Midifex Delay (short demonstration). All sounds from the MS3 and all FX from the Midifex :p

The MS3 has 100 instrument sounds + 1 drumkit. And the Alesis has 64 delays and some reverb programs if i remember correctly :p #synths"

Kurzweil 900 MX MicroExpander

video upload by General Midi Guy ⚡

This appears to be the first post to feature the Kurzweil 900 MX MicroExpander.

"Demo of some of the 64+31 sounds in this of this module. There is also a larger version of the Kurzweil MX 900 called EG-20.

Think it could be related to the Kurzweil 1000 series? Sounds similar but not sure :p

There is also a built in reverb in the unit, some of the patches i turned it on and some off #kurzweil"

Kärntnerland Alpsound (Midi Expander Sound Module)

video upload by General Midi Guy ⚡

This appears to be the first one to be featured on the site.

"The Kärntnerland Alpsound (engineered by Limex) is a professional, compact MIDI sound expander built specifically for accordion and Steirische Harmonika players. This half-rack hardware module transforms MIDI data into authentic Oberkrainer and alpine folk music backing arrangements in real time.

Key Technical Specifications:

Form Factor: Portable 9.5-inch half-rack unit (1U height). Weighs ~1 kg.

Sound Board: 256 MB "Doppelpack" flash memory (combining Alpin Master and Tradition Exclusive libraries).

Polyphony: 116-voice polyphony to prevent note-clipping during complex live arrangements.

Audio Quality: 48 kHz high-fidelity sampling rate with integrated 24-bit reverb and chorus effects.

Connectivity: 5-pin MIDI Input, 12V DC power, and dual 1/4" (6.35mm) Left/Right stereo audio outputs.

Core Performance Features:

Dynamic Bellows Control: Seamlessly processes continuous MIDI CC data. The module alters the volume and tonal expression of instruments (like tuba and baritone horn) dynamically based on accordion bellows pressure.

Authentic Folk Instruments: Loaded with optimized samples of Styrian accordions, baritone brass, acoustic rhythm guitars, clarinets, and trumpets.

Plug-and-Play Live Setup: Connects directly between any accordion MIDI system (such as Limex MPR3/MPR4) and a live PA system or amplifier."

Casio CSM-10P | Quick Demo of all 5 Sounds

video upload by General Midi Guy ⚡

This appears to be the first post to feature the Casio CSM-10P.

"This video is a quick demo of the Casio CSM-10P, showcasing the five built-in sounds, slightly lo-fi, warm, and relaxed — but not overly processed and no talking, no deep review, and no heavy effects etc.

Just a straightforward sound demo so you can hear what the Casio CSM-10P actually sounds like?"

DELTA DP-900 (1985) - the synth no one knew existed - HD

video upload by Vintage Audio Institute Italia

This appears to be the first post to feature the DELTA DP-900.

00:00 Pre - Introduction
00:38 Introduction
01:14 Flutes and Strings
02:05 Auto Accompaniment
04:42 MUSICAL INTERLUDE 1
06:00 Poly Voices
08:36 The Mystery
09:02 Synth Voices (Monophonic Synth)
12:02 Drum Machine
14:12 Outro

"DELTA DP-900 - 1985?

It happens that an instrument surfaces that no one's heard about or even seen before.
But it rarely happens that no one hasn't even heard of the manufacturer of that instrument.

Delta - what kind of brand was this?
Where were they?
Is this the only thing they developed?

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Ultrarare Soviet synthesizer Unost" 33 PSMIDI | ЮНОСТЬ 33 PSMIDI

video upload by Futulyric

"Manufactured at the Murom plant in the early 1990s, it was released in a small run of about 200 units. It contains 128 standard MIDI instruments."

You might recall the Roland Juno-106 inspired Unost' 21. This is the first post to feature the 33.

Schober Dynabeat 1968 Transistor-Based Drum Machine

Note: links to listings are affiliate links for which the site may be compensated.
video uploads by Adrian Täckman

Found the above searching for a demo after seeing the listing below. This is the first post to feature the Schober Dynabeat.

via this Reverb listing

This appears to be the first one featured on the site. Moby had a Portable Dynabeat you can see in this post (do a find for Schober when you get there).

"Here’s a rare Schober Dynabeat (1968). It’s a vintage, transistor-based electronic drum machine designed as a DIY kit to accompany Schober organs. It produced percussion sounds (bass drum, tom-tom, cymbals, bongos) using phase-shift oscillators, allowing players to trigger sounds via small pads or by connecting it to the organ’s lower keyboard and pedals."

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giaccaglia 527 Organs Made in Italy keyboard Quelle

video upload by An88

"Vintage cheap organs"

This is the first post to feature the 527. You can find another model previously featured here.

6/4/26 Narco Biofeedback System + Peavey DDL-3 + CXM 1978

video upload by Cfpp0

"This intriguing piece of scientific equipment from Narco Bio-Systems Inc. was intended for Electroencephalography (EEG), not for music, but it was available on eBay and seemed promising so we made an offer. The fraying power cable needs to be replaced, there’s a hum and it’s hissy, but it turned on. If we find the right electrodes I might hook it up to my brain, but for now, it’s running through the Peavey DDL-3 digital delay pedal, with reverb blended on the CXM 1978. At around 3:00 the manual fade-ins start turning into a drone and then, by around 4:45, the feedback is turned up higher on the DDL-3 to loop the drone."

Emu SP1200 & SP12 OTBElec SP MIDI Interface w/ Original Box

via this eBay listing

Here's an interesting device from the recent past. According to the listing details below the final batch came out in 2017. It's from OTBElec and this appears to be the first post to feature them on the site. The www.otbelec.com website is no longer live.

This one was spotted and sent in via
M Me. via the listing: "I bought this new & it was part of the final batch made in 2017. I stored it away because my SP12 required servicing & the interface subsequently was never used (or even unwrapped).

This may be the only brand new OTB MIDI in existence.


"The SP MIDI converts non-standard MIDI messages from the SP-1200 to regular MIDI. One such message is note off, which is required to set the length or duration of sequenced notes. The SP MIDI also translates the pitches of bank D to a continuous range of notes to store and sequence external devices. When recording it is necessary to set rec mode.

Internal mode is used to select up to three samples which then have their 16 pitch levels mapped out over the keyboard. Now supporting note off you can play like you would normally expect, where the sample mutes when the key is released. Excellent for looped samples, i.e. bass lines.

External mode is used to sequence other instruments. It uses bank D1-D6 to record notes on one MIDI channel and D7-D8 on another channel. D1-D6 is mapped to a full note range by pad number and pitch, making it possible to play a melody using the pads. Also note off is sent as you hit the pads a second time, unless F1 oneshot is selected. D7-D8 is combined together to give a full range of note numbers and is best used with a keyboard.

Dynamic velocity is maintained, if not Full Level is selected.

The SP MIDI firmware can be updated using a computer with a MIDI interface.

These features also allow pitching and using the loop function on a S950."

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A Potted History of Drum Synthesizers

video upload by Alex Ball and Nathan Curran Tugg the Drummer (Tugg)

"A look at a niche within a niche, the drum synthesizer; a story that begins in the late 60s and continues to this very day."

0:00 Intro
0:25 Definition of a "Drum Synthesizer"
2:24 Precursors, DIY and Impakt
4:03 Star Instruments Synare
5:09 How these Instruments Worked
6:13 Syndrum: The First Famous Drum Synth
8:45 Ult-Sound: Japan's First Drum Synth
10:10 Pearl & Tama: Here Come The Drum Companies
13:20 Simmons: The Zeitgeist
19:21 The Flood Gates & Mega-Montage
24:48 Soviet Offerings
25:17 Decline and the Splitting Point
27:05 Vermona: A New Era
29:28 Elektron: Blurred Lines
30:58 A Plethora of Machines
32:24 Clavia/Nord: Simply Red
33:39 Modern Day: The Culmination
34:44 Summary & Thanks
35:23 Patron Outro Jam

Update:

1/14/26 Simmons SDS6 + TAMA DS200 + Alesis MIDIVERB II + CXM 1978

video upload by Cfpp0

"This is one of two videos I recorded for the great Alex Ball (‪@AlexBallMusic‬) to use in his video about the history of drum synthesizers. I’m using the Simmons SDS7 to trigger the two halves of the TAMA DS200, with reverbs from the Alesis MIDIVERB II and the CXM 1978. The DS200 is running hot through the MIDIVERB II, overloading the preamp. The CXM 1978 has a long predelay in lo-fi mode to create a grainy pitchy echo."

Autocraft synthesizer 81 model CK-507 - what is it actually?

video upload by organfairy

"I test it with sound at 1:50

I bought this weird box many years ago, but I have never really found out what it is. I don't know why. It turned out to be an unpleasant noisemaker that is apparently build for use in cars. I don't know why anybody would want such a develish device, but on the other hand I don't understand the urge to have 'fuzzy dices' either.

The music is just me carbonaraing on my Elka X-1000 for little over 1½ minute."

LCD 647B Loop Maker

Note: links to listings are affiliate links for which the site may be compensated.
video upload by bogushokus1980

Note the video above is from 17 years ago. The listing below was spotted and sent in via M Me.

It was also available in Red:

loop maker toys by struktur. beat square

video upload by flao raphael

via this eBay listing

"We are offering this super rare LCD 647B Loop Maker, a truly unique and hard-to-find vintage electronic instrument designed for beat creation, sequencing, and hands-on performance 🎶🔥

This is not just a simple loop player ❌
It’s a programmable drum machine & sequencer that lets you edit individual rhythm parts and shape your grooves in detail.

✨ Special Features:
• 🎚️ Full rhythm programming & editing
• 🎧 Built-in scratch wheel function for DJ-style effects
• 🔊 Deep, bass-heavy, highly distinctive sound
• 🎹 Built-in speaker for standalone use
• 🎙️ Audio input for extra creative possibilities"

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Bugari Sound Unit

via this Reverb listing

This appears to be the first one to be featured on the site. If you have any additional info to share, please leave a comment at the bottom of this post.

"There's no brand logo or serial number number anywhere on the machine so we can't say for sure who made this but it's a professionally, mass produced unit.

Sold as not functioning but is untested - it might work - looks complete on the inside and outside and condition is excellent.

Amazingly rare machine - most likely this was made by Bugari in Italy in the early 80s or late 70s.

It was probably made to be controlled by an external controller such as foot pedals or an electric accordion, with lots of sound presets.

It’s in excellent condition but is untested since we don’t have the compatible foot pedal or accordion.

It sports 2 hardwired cables : 1 for external controller and 1 for the power supply with long cable with regular Italian 3 prong power connector at the end.

220 volt version with EU plug."

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Bob Moog's First Keyboard Instrument Ever Built Added to BMF Archives

via The Bob Moog Foundation

Meet The RENSITRON!

"Bob Moog's First Keyboard Instrument Added to the Bob Moog Foundation Archives

Bob Moog’s earliest known keyboard instrument, the Rensitron, now resides in the Bob Moog Foundation Archives! Bob built this small electronic organ in 1951, at only 16 years of age. His Bronx High School of Science teacher, Hymen Rensin, bought the instrument from Bob for $10 ($120 when adjusted for inflation)!

The Rensitron is a two-octave electronic organ, featuring vacuum tubes, hand-carved wooden mini-keys, and a built-in 5-inch speaker with a hand-made, stylized 'R' speaker grille, all encased in a slanted wooden cabinet. If you're wondering how someone so young could have designed this, Bob had already been dabbling in electronics since age ten! The 'chicken head' knobs on the front panel for volume, tone, and pitch are the same as those used on classic R.A. Moog synth modules, whispering hints about the world-changing instruments yet to come. Similarly portentous are two top panel labels, which read 'Rensitron' and 'Electronic Organ Made For Mr. Rensin By Robert Moog May 1951,' both of which use the same black Dymo Labeler tape as the early R.A. Moog modular systems.

Most notable up top are hand-crafted wooden keys with spring action, most likely made by Bob's father, George Conrad Moog, an engineer and woodworker. Some of the keys have less 'spring in their step' than others, but most still retain a very playable feel!

To learn more about the Rensitron and see more pictures, check out our blog post on moogfoundation.org!"

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Sequential Circuits Pro One Demo

video upload by synthpro

"Hey Guys,
This is a video going over Hollan's Pro One I service for him.

Thanks for watching!

Jareth"

SN 2731 w/ UL Electronics MIDI kit. This is the first post to feature/mention UL Electronics.

Exelvision Exeldrums

This one was spotted and sent in via Ivan Trajkovic aka deejayiwan. This is the first post to feature Exelvision.

via the Rare & Old Computers blog

"As I said in another blog post I find the computers of the 1980s French company Exelvision interesting and under-appreciated. Not only featured these computers (French) speech synthesis, but it had also one of the most interesting and quirky add-ons of the 80s: a digital drum computer (well, sort of)! Fitting into the naming scheme of Exelvisions products, it was called the “Exeldrums”. It was first sold in 1985 for 1200 French Francs (about 400 USD today)."

See Rare & Old Computers for the full post.

RARE MOOG Four Track track tape machine one of a kind!

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

via this eBay listing

"This is a one of kind RARE MOOG 4 Track. There were very few made. This one turns on but I don't have a way of testing out its full functionality."

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