Saturday, September 06, 2025
"Patients Everyday" - Analog Radio, Noiseboxs, Novation Peak Synth, Arturia Pigments Synth
video upload by Mark Farrelly
"Live space ambient improvisation with an analog radio, two noiseboxs, Novation Peak synth, Arturia Pigments synth. Zoom MS-70 CDR for Radio delays. Valhalla Supermassive and Eventide Blackhole reverbs. Recorded and mixed live into Logic Pro."
Generative Melodies Just Got Easier
video upload by EZBOT
"Here's an interesting approach to using the built-in Euclidean sequencer in the Digitakt, Digitone, Syntakt, or Analog Rytm. This method gives you the freedom to generate melodies in scale, polyphonically, on all machines while still maintaining a sense of control. It's a ton of fun and the results are always useful for getting a track started."
EZBOT resources: https://www.patreon.com/ezbot, https://ko-fi.com/ezbot/, https://www.modbang.com
Korg multi/poly - "Neon Heart" 40 Performances (Soundset)
video upload by LFOstore
"We continue Korg Multi/poly soundsets series & present "Neon Heart" now is the time for Analog & Vintage Sounds!
Buy: https://lfostore.sellfy.store/p/korg-...
More Korg multi/poly presets: https://lfostore.sellfy.store/search/...
Works with hardware multi/poly and native plugin.
Welcome to the warmly vintage world!
40 performances ready to breathe new colors into your music and inspire creativity.
Discover warm polys, lush textures and basses.
Each performances in 'Neon Heart' is crafted with musicality and ease of use in mind, allowing you to integrate them seamlessly into your music projects.
Whether you're scoring a film, producing electronic tracks, or creating ambient soundscapes, these sounds will inspire and elevate your creative expression.
Enjoy the journey into the vintage sound world, and let the music guide you."
Rare Gear Demo: The Johnson Intonation Trainer (1966)
Note: Auction links are affiliate links for which the site may be compensated.
video upload by Instrument Attic
via this eBay listing
"The 1966 Johnson Intonation Trainer is a rare and intriguing instrument developed by the E.F. Johnson Company of Waseca, Minnesota. Originally designed to assess pitch-matching and pitch-discrimination abilities, this device has garnered attention for its unique features and potential applications in modern music production.  
One of the standout characteristics of the Johnson Intonation Trainer is its full polyphony, allowing all 37 keys to be played simultaneously. Each key is associated with its own oscillator, enabling microtonal adjustments and the exploration of unconventional scales and tunings. The instrument offers four distinct voicing options, ranging from basic sine waves to more complex, reedy tones. Additionally, the “Scale Selector” switch provides a choice between standard tempered tuning and a tunable mode, with individual “Tunable Scale Controls” corresponding to each note on the keyboard for precise pitch calibration.    
Housed in a robust fiberglass case, the Intonation Trainer features a built-in speaker, though it can also be connected to external amplifiers or mixers via standard 1/4” outputs. Some units include a vibrato effect, though functionality may vary between models. 
In contemporary settings, the Johnson Intonation Trainer has found a niche among experimental musicians and sound designers. Its ability to produce rich drones and facilitate microtonal exploration makes it a valuable tool for creating unique sonic textures. The instrument’s vintage analog circuitry imparts a distinctive warmth and character that is highly sought after in modern music production.
Due to limited production and the passage of time, functional units of the Johnson Intonation Trainer are exceedingly rare. Finding one in full working condition, complete with original documentation, is a remarkable discovery for collectors and enthusiasts alike. The scarcity of this instrument, combined with its unique capabilities, underscores its status as a treasured piece of audio history."
via this eBay listing
"Made in 1966 in Waseca, Minnesota by the E. F. Johnson Company. Originally designed as an ear training and intonation device, but in practice it is a unique fully polyphonic analog synthesizer with extensive tuning control. Very few were made, and surviving examples in this condition are vanishingly rare.
video upload by Instrument Attic
via this eBay listing
"The 1966 Johnson Intonation Trainer is a rare and intriguing instrument developed by the E.F. Johnson Company of Waseca, Minnesota. Originally designed to assess pitch-matching and pitch-discrimination abilities, this device has garnered attention for its unique features and potential applications in modern music production.  
One of the standout characteristics of the Johnson Intonation Trainer is its full polyphony, allowing all 37 keys to be played simultaneously. Each key is associated with its own oscillator, enabling microtonal adjustments and the exploration of unconventional scales and tunings. The instrument offers four distinct voicing options, ranging from basic sine waves to more complex, reedy tones. Additionally, the “Scale Selector” switch provides a choice between standard tempered tuning and a tunable mode, with individual “Tunable Scale Controls” corresponding to each note on the keyboard for precise pitch calibration.    
Housed in a robust fiberglass case, the Intonation Trainer features a built-in speaker, though it can also be connected to external amplifiers or mixers via standard 1/4” outputs. Some units include a vibrato effect, though functionality may vary between models. 
In contemporary settings, the Johnson Intonation Trainer has found a niche among experimental musicians and sound designers. Its ability to produce rich drones and facilitate microtonal exploration makes it a valuable tool for creating unique sonic textures. The instrument’s vintage analog circuitry imparts a distinctive warmth and character that is highly sought after in modern music production.
Due to limited production and the passage of time, functional units of the Johnson Intonation Trainer are exceedingly rare. Finding one in full working condition, complete with original documentation, is a remarkable discovery for collectors and enthusiasts alike. The scarcity of this instrument, combined with its unique capabilities, underscores its status as a treasured piece of audio history."
via this eBay listing
"Made in 1966 in Waseca, Minnesota by the E. F. Johnson Company. Originally designed as an ear training and intonation device, but in practice it is a unique fully polyphonic analog synthesizer with extensive tuning control. Very few were made, and surviving examples in this condition are vanishingly rare.
Michigan Synth Works Xena Hybrid Desktop Synthesizer (SVF)
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
You can find demos of the Xena in previous posts here.
via this listing
Additional Perfect Circuit listings
You can find demos of the Xena in previous posts here.
Roland CR-8000 CompuRhythm Drum Machine SN 329214
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Realistic Moog MG-1 Analog Keyboard Synthesizer SN 8643
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Oberheim MATRIX 12 SN M51427 w/ Original Manual
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"USA Version : This Oberheim Matrix 12 has been serviced and tested by Synthesizer Expert Adrian Dolent, propriertor of Synth repair in Bedford. Adrian wrote :
"So, basically the synth is all working electronically, and does what it's meant to.
I can confirm that the editor program DOES WORK, and you can edit the synth from a PC with the program installed. I will provide a copy of the program and sound files on a USB stick or SD card "
He found the synth to be in full working order, there were 2 criticisms, there is a mark on the top next to the Oberheim name which can be seen in the pics, also 1 of the displays is a little dimmer than the other 2 as can be seen in the pictures, this seems to be common on the other Matrix 12 synths being offered for sale.
What this synth has which most of the others don't are 12 output sockets on the side of the synth for direct outputs for the 12 sounds. These were fitted by Oberheim.
It has MIDI In, MIDI Out and MIDI Thru
It comes with the original manual and an SD card containing the Matrix 12 Editor
The synth is currently in Bedford in the UK where it can be tested. Highly Recommended
The price is £13,000 including vat and free delivery in the UK.
Export price is £10,800 plus shipping
Eoe."
via this Reverb listing
"USA Version : This Oberheim Matrix 12 has been serviced and tested by Synthesizer Expert Adrian Dolent, propriertor of Synth repair in Bedford. Adrian wrote :"So, basically the synth is all working electronically, and does what it's meant to.
I can confirm that the editor program DOES WORK, and you can edit the synth from a PC with the program installed. I will provide a copy of the program and sound files on a USB stick or SD card "
He found the synth to be in full working order, there were 2 criticisms, there is a mark on the top next to the Oberheim name which can be seen in the pics, also 1 of the displays is a little dimmer than the other 2 as can be seen in the pictures, this seems to be common on the other Matrix 12 synths being offered for sale.
What this synth has which most of the others don't are 12 output sockets on the side of the synth for direct outputs for the 12 sounds. These were fitted by Oberheim.
It has MIDI In, MIDI Out and MIDI Thru
It comes with the original manual and an SD card containing the Matrix 12 Editor
The synth is currently in Bedford in the UK where it can be tested. Highly Recommended
The price is £13,000 including vat and free delivery in the UK.
Export price is £10,800 plus shipping
Eoe."
E-MU Systems Morpheus 32-Voice Z-Plane Synthesizer SN 099704203 w/ Original Box & Manual
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Korg PSS-50 Super Section Portable Synthesizer w/ Original Documents SN 014461
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"Korg PSS-50 vintage synthesizer in like-new condition. This rare, collectible unit is fully functional. Comes with all original documents, including the user manual, quick-start guide, and warranty cards, and original serial number affixed to original box, all in excellent condition. Known for its chiptune-style sounds, built-in rhythms, and intuitive design, the PSS-50 is perfect for both beginners and collectors. A fantastic addition to any vintage synth collection!"
via this eBay listing
"Korg PSS-50 vintage synthesizer in like-new condition. This rare, collectible unit is fully functional. Comes with all original documents, including the user manual, quick-start guide, and warranty cards, and original serial number affixed to original box, all in excellent condition. Known for its chiptune-style sounds, built-in rhythms, and intuitive design, the PSS-50 is perfect for both beginners and collectors. A fantastic addition to any vintage synth collection!"
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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
