Note: Auction links are affiliate links for which the site may be compensated.
via this listing
"SIEL Piano Quattro synthesizer piano in excellent condition, working in all its parts.
WITH ANIMATOR AND EQUALIZER, A REAL CHICCA FOR THOSE LOOKING FOR THE TYPICAL SOUND OF ITALO DISCO.
THE AESTHETIC AND FUNCTIONAL CONDITIONS ARE EXCELLENT.
CREATED IN COLLABORATION WITH SEQUENTIAL CIRCUITS WHO PRODUCED IT WITH ITS BRAND IN A REDUCED VERSION."
Note this appears to be the first one featured on the site.
Showing posts with label exclusive. Show all posts
Showing posts with label exclusive. Show all posts
Saturday, November 23, 2024
Thursday, November 21, 2024
MOOG MuSonics Sonic V 1972 - Signed by Original Inventor Gene Zumchak
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
"This is a very rare synthesizer, the Moog MuSonics SONIC V, from 1972. Only 100 of these were made, and this is serial number 90. They were only available in 1971 and 72 when Moog joined MuSonics. I bought it many years ago in Buffalo New York, the same town where they were created. I took it to original inventor Gene Zumchak who still lived in Buffalo and he signed it for me on the front panel. He said he had not seen one since 1972 and never signed one before or since.
It is in all-working condition, 2 oscillators, 2 lfos, low pass filter, ring modulator, envelope generator, and VCA. (These are very similar in design to the later Sonic 6, which was a redesigned by Bob Moog and Dave Luce.) in some ways I consider this superior to the Minimoog, has it allows wilder and crazier modulation - plus the ringmodulator. As we say, it sounds more like a 'baby Moog modular.'
Please see the YouTube video I made a while ago, showing how great and fascinating this instrument can be." You can find them in previous posts here.
via this listing

It is in all-working condition, 2 oscillators, 2 lfos, low pass filter, ring modulator, envelope generator, and VCA. (These are very similar in design to the later Sonic 6, which was a redesigned by Bob Moog and Dave Luce.) in some ways I consider this superior to the Minimoog, has it allows wilder and crazier modulation - plus the ringmodulator. As we say, it sounds more like a 'baby Moog modular.'
Please see the YouTube video I made a while ago, showing how great and fascinating this instrument can be." You can find them in previous posts here.
Tuesday, October 01, 2024
Elektor ok-drumbox M 253
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
This appears to be the first one featured on the site.
Pics of the inside below.
"Elektor Drumbox M-253
The device is basically functional, i.e. the instruments sound and different rhythms with variations can be set.
However, a humming noise can be heard, which gets louder with the volume control knob (check the power supply).
for sale to hobbyists and connoisseurs"
via this listing
This appears to be the first one featured on the site.
Pics of the inside below.
"Elektor Drumbox M-253
The device is basically functional, i.e. the instruments sound and different rhythms with variations can be set.
However, a humming noise can be heard, which gets louder with the volume control knob (check the power supply).
for sale to hobbyists and connoisseurs"
Sunday, September 01, 2024
AMS 3 - Socialist East Germany's Massive Modular
video upload by HAINBACH
"Synthesizers had it hard in Socialist East-Germany - Socialist Realism was for a long time the prevailing art form. An instrument that creates unreal sounds was not endorsed by the SED leadership. Only in the waning years of the GDR (or DDR as it is called in German) that changed, with the Vermona Synthesizer coming out in 1982. The first officially sanctioned modular synthesizer, the Audiotronic AMS3 featured in this video was built between 1986 and 1988 for the Electro-Acoustic Studio of the Akademie der Künste.
Music, Soundpack and thanks: / hainbach"
You can find the Subharchord here: An Avant-Garde Synthesizer From 1960s East Germany
Tuesday, August 13, 2024
THE WEIRDEST DRUM MACHINE YOU'VE NEVER HEARD OF
video upload by LOOK MUM NO COMPUTER
"The Seabro Gig Machine!
Check out the mentioned samples and songs from this video available to download here :- / lookmumnocomputer
Which helps the constant improvement of @THISMUSEUMISNOTOBSOLETE info here :- https://this-museum-is-not-obsolete.com/"
Note this is the first post to feature Seabro.
Saturday, August 10, 2024
KTI Keyboard Technologies GZ1000 PERFORMANCE KEYBOARD
via this listing
Never seen one of these before. From the listing:
"Master Keyboard designed by CHUCK MONTE = the man behind Dyno-My-Piano :
* 88 wooden keys
* keyboard action can be adjusted with a lever = check last pic
* similar feeling to a Fender Rhodes
* NEW PRICE was 3500 bucks"
Monday, August 05, 2024
John Chowning, Computer Music, DX7 & FM Discovery
video upload by Anthony Marinelli Music
"It was an honor for me to interview John Chowning who is directly responsible for the way we create music today in every genre! His visionary ideas have profoundly shaped contemporary music creation, including the integration of computers, AI, digital synthesis, sound sharing, and surround sound.
He stands as a monumental figure in 21st-century music, renowned for his pioneering contributions as a composer, musician, and educator. As the founding director of the Center for Computer Research in Music and Acoustics (CCRMA) at Stanford University, Chowning made groundbreaking strides in the field. His historic discovery of FM synthesis not only became one of Stanford’s most valuable patents but also paved the way for Yamaha’s DX7 synthesizer through their licensing of FM sound synthesis technology.
Another important aspect of Chowning's work is the simulated motion of sound through physical space creating an illusion of a continuous 360-degree space using only four speakers. John’s boundless curiosity and groundbreaking achievements have established him as a bright shining beacon of inspiration for musicians everywhere.
00:00 - Cold Open
00:42 - intro
02:27 - Read to Discovery
06:15 - Stanford & Early Electronic Music
14:26 - Discovering FM Synthesis
19:25 - The FM Enlightenment
23:14 - Yamaha DX7
31:09 - Synclavier VS Yamaha
36:02 - FM Made Simple
43:04 - The Power of Timbre
51:09 - Where are we now?"
Friday, May 17, 2024
Tuesday, February 27, 2024
Unsung hero: Harald Bode, pioneer and inventor of modular synthesizers
video upload by LektroiD
"Some rare footage of the inventor and pioneer of modular synthesis, Harald Bode, showing off his modular synth which pre-dates the Moog by over half a decade.
Enhanced and restored footage"
Saturday, February 24, 2024
Impro #1 on Ernst Krenek's Buchla 100
video upload by JesterN
"These days I have the honour to play one of the earliest Buchla 100 synthesizer. Dating from 1967 (number 12 in the books) and owned by Austrian composer Ernst Krenek, this beautiful instrument is located in Krems an Donau, Austria. This is an excerpt of an impro working on gamelan repetitions that is going to be released on a future album. Thanks to the Ernst Krenek Institut / AIR Residency program.
Thanks to the Ernst Krenek Institute and AIR Residency.
more info: www.jestern.com"
Impro #2 on Ernst Krenek's Buchla 100
video upload by JesterN
"Alberto Novello playing one of the first produced Buchla Synthesizers (number 12), series 100 purchased by the Austrian composer Ernst Krenek in 1967.
Thanks to Ernst Krenek Institut / AIR residency."
Friday, February 02, 2024
Exploring the 1st Buchla 100 Modular Synthesizer
video upload by Sarah Belle Reid
"This video is a historical, technical, and musical deep dive into the Buchla 100 Series Modular System at the Mills College Center for Contemporary Music. This instrument was the first voltage controllable modular synthesizer built by Don Buchla—it was delivered to the San Francisco Tape Music Center in the mid-1960s.
In this video we’ll start with a brief historical overview of the Buchla 100 Series Modular System and the San Francisco Tape Music Center. Then, we’ll unpack everything that’s inside the instrument module by module. Finally, I’ll share some of the quirks of this particular instrument, and lots of patch examples to illustrate its unique voice and character.
As I was getting to know this instrument, I tried to keep in mind the circumstances surrounding its development—the people who contributed to it, the time in which it emerged, and the state of electronic music at the time of its invention. These thoughts greatly inspired my approach to working with the instrument and are present throughout this video.
It’s a rare opportunity to be able to work with a historical instrument like this one. I have always been super inspired by Buchla’s work in general, but like many people have had few opportunities to work with his original instruments. Instead, much of my experience has been through newer instruments inspired by his designs. Being able to work closely with this instrument was an incredibly inspiring and clarifying experience that allowed me to gain a deeper understanding of Buchla’s own creative and technical development, as well as the multitude of music, modern modules, and instruments that have been inspired by his work.
Special thank you to Mills College for letting us spend a week in the electronic music studio working with the Buchla 100; to The Buchla Archives and Ryan Gaston for helping to put this video together; and also to all of the amazing folks in my Patreon community for your support in helping to bring educational projects like this one to life!
Learn more / join the waitlist for Learning Sound and Synthesis, my online modular synthesis and sound design class: https://www.soundandsynthesis.com
Join my Patreon community for behind-the-scenes content, unreleased music, and extended tutorials: sarahbellereid
Thank you to:
Mills College Center for Contemporary Music https://www.performingarts.mills.edu
The Buchla Archives https://www.buchlaarchives.com
Ryan Gaston (co-producing + filming) https://gastonsounds.com
Hainbach (tape slicing footage)
TIMESTAMPS:
00:00 Historical Overview: Buchla 100 + the San Francisco Tape Music Center
7:38 Mills Buchla 100 System Overview
14:27 Timbre in the Mills Buchla 100
18:29 Chaos in the Mills Buchla 100
21:52 Voltage Control Quirks
25:00 Sequencing Tactics: Triggered Segments
30:40 Sequencing Tactics: Extended Sequences
32:06 More Patches + Sounds
32:36 Ring Modulated Reverb Patch
34:40 Keyboard Chaos Patch
36:55 Gated Voice Patch
38:29 Wonky Drum Machine Patch
38:57 Triggered Gestures Patch
39:14 Transposed FM Sequence Patch
39:48 Bell Tones Patch
40:27 Touch Controlled Ratchet Patch
41:00 Sequenced Melodic Patch
Sarah Belle Reid is a performer-composer, active in the fields of electroacoustic trumpet performance, intermedia arts, music technology, and improvisation.
www.sarahbellereid.com"


"In the Spring of 2024, Reid spent a week at the Center for Contemporary Music at Mills College, where she worked closely with their original Buchla 100 modular synthesizer system. This specific instrument’s historical significance can’t be overstated. It was the very first voltage controllable modular synthesizer that the now-famous artist, inventor, and electronic musical instrument designer Donald Buchla built in the mid 1960s—indeed, one of the very first modular synthesizers altogether. In its time, this specific system has been used by countless inspiring and influential musicians, such as Pauline Oliveros, Morton Subotnick, Suzanne Ciani, Warner Jepson, and others.
The video begins with a brief historical overview of the Buchla 100 Series Modular System and the San Francisco Tape Music Center. Then, Reid unpacks everything that’s inside the instrument module by module, with sound demos and examples. Finally, she shares some of the unique quirks of the Mills Buchla 100 instrument, and patch examples of how the instrument can be used to create a wide range of music and sounds."
Friday, January 12, 2024
Keith Humble's Optronics Workstation
video upload by Robotussin Vintage Synths
"This is the Optronics Workstation, an Australian synth made for composer Keith Humble around 1970. It could be controlled by brainwaves…
The Optronics Workstation contains an EMS VCS1 – you can see the controls in the bottom right corner. Yes, a VCS1, not the VCS3 that EMS eventually marketed. The VCS1 was the first synth made by British company EMS. Three were created, the original, known as the Don Banks Music Box, can be seen above in the last image. It was made in 1968, predating the VCS3 by 12 months and many say it was the commission from Don Banks that led to the formation of EMS, so perhaps without it, there would be no other EMS synths.
Humble’s Optronics was built by an engineer called Graham Thirkell around the VCS1. It is perhaps the world’s first electronic workstation, containing a mixer, a synth and FX, all of which are inter-patchable.
In the centre is the 'Mindreader' or 'OmniVoila'. Players attach an electrode to their temples and this device read the signals and turned it into voltage to produce sound or modulation. On the left side is a three-channel mixer for three external line inputs, plus a send for a delay. Top right is a patch panel where voltages can be routed to create sound or modulation. Above that you can see two ring modulators. It also has an in-built spring reverb.
Humble was a huge early proponent of electronic music in Australia. He founded the Electronic Music Studio at Melbourne Universities’ Grainger Centre and the music school at La Trobe University, Melbourne.
The Optronics Workstation is now in the collection of MESS, the non-profit Melbourne Electronic Sound Studio. They are fantastic people who preserve and restore vintage instruments and encourage people to come in and play with them. Humble’s Optronics still works, so if you’re in Melbourne or near there, drop them a line and go say hello.
They were going to send me some video of it in action but I think they’re too slammed. I’ve included the only audio I could find that might be the Optronics in action. It might not be, though. But it was made by Keith Humble about a year after he started working with the Optronics and given that it was his only synth at the time, I think there's a good chance the audio was made with the Optronics."
Thursday, January 11, 2024
Various – Columbia-Princeton Electronic Music Center - Vinyl
video upload by ZacJust3Letters
"Various – Columbia-Princeton Electronic Music Center
Label: Columbia Masterworks – MS 6566
Format: Vinyl, LP, Stereo
Country: US
Released: Apr 1964
Genre: Electronic
Style: Experimental, Electroacoustic
A1 Bülent Arel– Stereo Electronic Music No. 1
Composed By – Bülent Arel
A2 Halim El-Dabh– Leiyla And The Poet
Composed By – Halim El-Dabh
A3 Vladimir Ussachevsky– Creation - Prologue
Chorus – The Little Chorus Of Macalester College
Chorus Master – Ian Morton
Composed By – Vladimir Ussachevsky
B1 Milton Babbitt– Composition For Synthesizer
Composed By, Synthesizer – Milton Babbitt
B2 Mario Davidovsky– Electronic Study No. 1
Composed By – Mario Davidovsky
B3 Otto Luening– Gargoyles
Composed By – Otto Luening
Violin [Solo] – Max Pollikoff
Copyright © – Columbia Records
Published By – Associated Music Publishers Inc.
Mastered At – Customatrix
Pressed By – Columbia Records Pressing Plant, Pitman"
Sunday, January 07, 2024
Percy Grainger's Free Music Machine
video upload by Robotussin Vintage Synth
"A video from the Australian Broadcasting Company about a composer and inventor called Percy Grainger, who made electronic instruments in the 1950s that would follow a curving line to create pitch and music. He physically made the curving line out of thick sheets of card and fed them into the machine, controlling the pitch of an oscillator."
EMS SYNTHI 100 in the beginning.
Saturday, December 30, 2023
Roger Nichols WENDEL JR Drum Sampler
Note: Auction links are affiliate links for which the site may be compensated.
EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC video upload by Synclav com
via this auction
Note auction links are affiliate links. See the site's privacy policy for more info.
This one was spotted and sent in via
M Me.
Note this is the first one to be featured on the site. There's mention of a Wendel Sampling Computer here. Roger Nichols, the creator, passed away in 2011.

"Note that there is only one (1) unit (s.n. 140) shown in the photos and seven (7) sound boards, and that is what you get for one money.
Serial number 140 is seen in the video "EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC", it is the unit that is not rack mounted but over on the right side, sitting on top of the two stacked Lexicon 224XLs with the two LARC remotes sitting on top of it, and it is heard to play the Tom-2, Crash cymbal (Crash Cym-1), Ride cymbal (Ride Cym-1), Heart snare, and Heart kick.
If you select quantity two (2), you will get the second identical unit (s.n. 230) and a second set of the same (7) sound boards. I promise you the second one not shown is in equal or better condition. This would be very powerful and convenient setup for a producer to have, then able to do kick and snare at the same time, for example, and also for live sound drum replacement applications.
Serial number 230 is seen in the video "EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC", it is the unit that is in the bottom of the rack, and it is heard to play the two alternating clap sounds (the clap sound is not included in this listing, but always available), which again shows what the WENDELjr can do but none of these drum machines can (alternate claps, they just go clap-clap, same sound, machine-like).
Also if someone wants me to list just the sound kit for some other WENDELjr they bought from a chump and have no sounds for it, it's $799.00 for the seven sounds on seven boards."
EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC video upload by Synclav com
via this auction
Note auction links are affiliate links. See the site's privacy policy for more info.
This one was spotted and sent in via
M Me.
Note this is the first one to be featured on the site. There's mention of a Wendel Sampling Computer here. Roger Nichols, the creator, passed away in 2011.


Serial number 140 is seen in the video "EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC", it is the unit that is not rack mounted but over on the right side, sitting on top of the two stacked Lexicon 224XLs with the two LARC remotes sitting on top of it, and it is heard to play the Tom-2, Crash cymbal (Crash Cym-1), Ride cymbal (Ride Cym-1), Heart snare, and Heart kick.
If you select quantity two (2), you will get the second identical unit (s.n. 230) and a second set of the same (7) sound boards. I promise you the second one not shown is in equal or better condition. This would be very powerful and convenient setup for a producer to have, then able to do kick and snare at the same time, for example, and also for live sound drum replacement applications.
Serial number 230 is seen in the video "EPIC!!! '80s Drums 'n' Echo: Roger Nichols WENDEL/WENDELjr Sequential Drumtraks Lexicon 224XL/LARC", it is the unit that is in the bottom of the rack, and it is heard to play the two alternating clap sounds (the clap sound is not included in this listing, but always available), which again shows what the WENDELjr can do but none of these drum machines can (alternate claps, they just go clap-clap, same sound, machine-like).
Also if someone wants me to list just the sound kit for some other WENDELjr they bought from a chump and have no sounds for it, it's $799.00 for the seven sounds on seven boards."
Friday, December 15, 2023
Long-lost Moog synthesizer finally makes it to the stage
video upload by Cornell University
"A piece of synthesizer history has been given an unexpected second life and is now a part of Cornell’s instrument collection, after eight months of meticulous and often confounding work by a group of synthesizer builders.
The rebuilt and rewired instrument, designed by theorist David Rothenberg and built by renowned synthesizer pioneer Robert Moog, Ph.D. ’65, is housed in Lincoln Hall and graduate student composers will begin experimenting with its unique tonal range next semester."
Sunday, December 03, 2023
Model 162-8 Mystery Sequencer
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
Note auction links are affiliate links. See the site's privacy policy for more info.
GARLAN ELECTRONICS CO?
From East Lansing Michigan.
Looks DIY from the pics of the inside.
If anyone knows more about this one, feeel free to leave a comment.
via this auction
Note auction links are affiliate links. See the site's privacy policy for more info.
GARLAN ELECTRONICS CO?
From East Lansing Michigan.
Looks DIY from the pics of the inside.
If anyone knows more about this one, feeel free to leave a comment.
Sunday, November 26, 2023
Never Released Korg MU-5000 (Japan, 1985) Vintage Music Synthesizer PC Prototype
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
SN ES 850111
"In 1985 Korg decided to challenge the personal computer market creating a competitor for the legendary Commodore 64 (which was born three years earlier, in 1982).
Rumors then began to circulate about a new musical personal computer signed by Korg, called KORG MC-4000.
Along with the Korg MC-4000, Korg had designed 2 units which were extra and integral parts of the personal computer: a music synth expander called Korg MU-5000 and a microdisk unit called Korg MF-1000.
The incredible fact is that the personal computer project signed by Korg (the first “musical” personal computer in history) has remained for many years as a fake, since none of these products has ever been marketed in the western world.
The only historical artifact related to this project is a Japanese advertisement, a printed ad by Ishibashi Gakki released in the April 1985 issue of “Keyboard Magazine”.
In this ad (please, see the original photos), there were showed 3 products: KORG MC-4000, KORG MU-5000 and KORG MF-1000. The KORG MC-4000 music computer was then presented as a "compact computer containing its own music system".
Korg MC-4000, Korg MU-5000 and Korg MF-1000, according to historical information, have never been marketed because then Korg decided not to challenge the personal computer market. We don't know why!
Today, after years of research, we at Re Seller are pleased to present you the only survivor in the world of that super cool project: the original KORG MU-5000 expander synth!
This find of ours is of fundamental importance as it demonstrates that the Korg music personal computer project would have been really close to being commercialized!
This impossible to find Korg MU-5000 has been tested and is still in working order! Cosmetically there are minor signs of wear due to age, but nothing serious. The power supply is compatible and is included in the sale (this unit works with any 9V power supply and center negative polarity).
This small desktop synth contains beautiful sounds at its core! It is a 16-channel midi expander capable of generating some mighty impressive sounds courtesy of the same Digital Waveform Generator System used in the DW6000 and in the best Korg sounds of the 80s!
What we were able to test is very easy: we connected a midi keyboard to the Korg MU-5000 and listened to 128 sounds preset via program change (we changed the program change directly on the MIDI keyboard).
There are probably many more features to discover, but we don't have the capabilities to test it 100%!
An incredible piece of history, for the most demanding collectors in the world. Impossible to find another in all of history!"
via this auction
SN ES 850111


Rumors then began to circulate about a new musical personal computer signed by Korg, called KORG MC-4000.
Along with the Korg MC-4000, Korg had designed 2 units which were extra and integral parts of the personal computer: a music synth expander called Korg MU-5000 and a microdisk unit called Korg MF-1000.
The incredible fact is that the personal computer project signed by Korg (the first “musical” personal computer in history) has remained for many years as a fake, since none of these products has ever been marketed in the western world.
The only historical artifact related to this project is a Japanese advertisement, a printed ad by Ishibashi Gakki released in the April 1985 issue of “Keyboard Magazine”.
In this ad (please, see the original photos), there were showed 3 products: KORG MC-4000, KORG MU-5000 and KORG MF-1000. The KORG MC-4000 music computer was then presented as a "compact computer containing its own music system".
Korg MC-4000, Korg MU-5000 and Korg MF-1000, according to historical information, have never been marketed because then Korg decided not to challenge the personal computer market. We don't know why!
Today, after years of research, we at Re Seller are pleased to present you the only survivor in the world of that super cool project: the original KORG MU-5000 expander synth!
This find of ours is of fundamental importance as it demonstrates that the Korg music personal computer project would have been really close to being commercialized!
This impossible to find Korg MU-5000 has been tested and is still in working order! Cosmetically there are minor signs of wear due to age, but nothing serious. The power supply is compatible and is included in the sale (this unit works with any 9V power supply and center negative polarity).
This small desktop synth contains beautiful sounds at its core! It is a 16-channel midi expander capable of generating some mighty impressive sounds courtesy of the same Digital Waveform Generator System used in the DW6000 and in the best Korg sounds of the 80s!
What we were able to test is very easy: we connected a midi keyboard to the Korg MU-5000 and listened to 128 sounds preset via program change (we changed the program change directly on the MIDI keyboard).
There are probably many more features to discover, but we don't have the capabilities to test it 100%!
An incredible piece of history, for the most demanding collectors in the world. Impossible to find another in all of history!"
Saturday, November 04, 2023
Pulser LIVE BEATS M-35 Rhythm Box
video upload by Rec Gear Demos
aka Telly's Gear Depot On Reverb
The is the first one to be featured on the site.
Monday, October 23, 2023
Peter Theremin tries SOMA FLUX
video upload by Vlad Kreimer
"Peter Theremin is the great-grandson of the famous Leon Theremin
https://theremin.space/en/
FLUX
https://somasynths.com/flux/"
PREVIOUS PAGE
NEXT PAGE
HOME
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH













© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH