Alisa 1377 (1985) - Ambient Sound Demo

video upload by LFOstore

"#alisa #1377 #alisa1377 #synth #demo
Rare USSR synthesizer restored by Alex Taber!

It was made in USSR in 1985 at Luberetskiy Military Radioplant 'Rodina' near Moscow.

ALISA synthesizers were made especially for experimental electronic music, creating of sound effects in soviet cinema and scientific acoustic researches. This unique instrument has warm, aggressive and absolutely original analog sound!

The synthesizer has 1 OSC with 4 wave forms, ADSR , filter, various modulations, vibrato and portamento effects.

OSCILLATOR: tune; octave +1/+2; portamento; wave forms: triangle, saw, square, odd harmonics; frequency modulation (for all 4 waveforms); impulse-width modulation (for square wave form) with impulse width and depth controls; harmonics (for odd harmonics wave form). You can use individual OSC waveforms (triangle, saw, square, odd harmonics) or mix them together to get unique sounds!

LFO: on/off modulation switch, two waveforms (triangle, square), modulation rate, modulation rate coarse switch - 1Hz/10Hz.

FILTER: cutoff, resonance, vibrato (filter modulation), ADSR, switch between filter control- keyboard or contour OSC (ADSR). The synths filter due to it`s original architecture can be used as additional oscillator when filter`s resonance knob in self-oscillaltion position and it sounds really weird and interesting!

AMPLIFIER: ADSR, main volume, on/off synthesizer."

Roland S-550 Digital Sampler SN 874549

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via this listing

Additional Perfect Circuit listings

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Probability-based Transposing with PRECISION VOLTAGES, CHANCE DELAY & a Step Sequencer #eurorack

video upload by AJH Synth Official

"A sequencer patch using PRECISION VOLTAGES and CHANCE DELAY modules for probability-based transposing of steps. Also featuring sound from a single VCO and the SONIC XV filter & wave folder.

Video & Performance by @DreamsOfWires

PATCH BREAKDOWN:
A Doepfer Mini Sequencer is playing a simple 5-step sequence. The clock is from the DUAL LFO + VCA module, which is also triggering an DH-ADSR envelope generator (connected to audio VCA), and the SAMPLE HOLD & SLEW module.

Because the sequencer gates aren't being used to trigger the envelope generator, I can use them elsewhere, and on the Mini Sequencer they can be turned off per step, so instead I am sending these gates to the PRECISION VOLTAGES (Gate A). This means that whenever a gate signal is received, Precision Voltages will activate, shifting the pitch of connected VCOs by the selected amount.

To add variety to this, I am first running the gates through the CHANCE DELAY, with which I can adjust the chance/probability of the gates being passed through to the Precision Voltages, or ignored. This means that the transposed notes will only randomly occur, based on the position of the 'Chance' pot, here at 50%.

Precision Voltages is dual channel (A & B), but I'm using the combined A + B output, so that any semitone or octave changes that I make to channel B will be combined with those on channel A, which is the only channel being switched on or off by the incoming gates. This means I can transpose the whole sequence by the same selected semitone and octave values (here plus or minus 5 semitones) and still have the selected sequencer notes randomly transposing by the same interval.

As for the sound - just a single triangle wave into the SONIC XV Diode Ladder Filter, manually adding the wave folder to create a much more interesting timbre, and with the clocked SAMPLE HOLD & SLEW module randomly modulating the filter frequency, via the DUAL LFO\s built-in VCA, which is slowly modulating the level of the Sample and Hold from strong to nothing.

Mixed on a @solidstatelogic BigSix with @vermonagear DSR-3 Dual/Stereo (real) Spring Reverb. Both cases powered by the Konstant Lab StrongPWR, with small case using a Polyend Anywhere USB PSU, powered by the USB output of the StrongPWR. Clear acrylic Eurorack case by CASA Modular, Japan."

Steiner EVI rare wind synth SN 0024

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via this Vemia listing

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Interesting note about Apocalypse Now:

"Crumar/Steiner - EVI (s/n E1/00248) Electronic Valve Instrument analogue synth, designed by Nyle Steiner of Steiner-Parker fame. This one is manufactured by Crumar, who he started collaborating with in the late 70s. All working well and generally good condition. 220V with UK plug.

VEMIA note: the EVI was responsible for all of the solo melodies on the great soundtrack of Apocalypse Now, among many other major film credits. VEMIA can collect and pack: 12GBP."

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Formanta Polyvoks SN 0689257

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via this Vemia listing

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"Formanta - Polyvoks (s/n 0689251) The most famous Russian analogue synth. All working, although has not been used for a while, so the controls really need a clean, and maybe a calibration. One crack in the case on the back left edge. 220V (UK mains lead supplied - although not the original one). Adaptor included to convert DIN output socket to 1/4' jack.

VEMIA note: the slight damage is likely caused by the interesting design decision to put a plastic case round a heavy metal chassis and adding a lid so that the whole is nearly 20kg. Needs extra-special packing . VEMIA can collect and pack: 24GBP."

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Roland S-1 & P-6 song Synth and Drums 20.3.2026.

video upload by Veli-Matti Rautio

Octave Cat SRM II s/n G1162 as seen

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

via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Octave Electronics - Cat SRM II (s/n G1162) - In average condition, but not fully working. The LFO, Noise, VCF and VCA seem to be working, but there is a fault with the keyboard CV/Gate. Tidy inside - just needs fixing. 240V version. VEMIA can collect and pack: 18GBP"

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Korg VC-10 Vintage Vocoder w/ New Mic

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

via this eBay listing

"70 s Vintage Vocoder! Fully tested clean pots /switches /inputs /outputs Sounds like ELO vibes from that era! Perfect working order"

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Sequential Circuits Prophet-T8 SN 000467

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via this Vemia listing

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"Sequential Circuits - Prophet T8 (s/n 000467). 8 voice analogue poly. Not fully working. It does boot up and tune all oscillators, most functionality is working, but has a keying problem where not all voices are playing and one voice is stuck on. 240V version.

VEMIA can collect and pack: 36GBP."

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PS-3100, switchable voltage AS SEEN SN 805220

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

via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Korg PS3100 (s/n 805220) This rare and highly desirable vintage polysynth is in reasonable condition, but not fully functional. Powers up and does play to a degree, but there is a multiple oscillator sound that sounds all the time. Keyboard plays most notes, but some notes do not play. 240v version.

VEMIA can collect and pack: 36GBP."

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Sequential Circuits Studio 440 SN 00582

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Probably one of the best examples of the classic Studio 440 anywhere.
Sampler/sequencer/drum machine from Sequential Circuits, circa 1987. S/N 582. The present owner bought this from Wine Country in 2007. It has version 2.30 (SCSI) operating system by Pointsource, 512K RAM, 12-bit sampling, up to 35 seconds sample time (at 16kHz, max rate is 44kHz), 50,000 note sequencer capacity, 8-note polyphonic, stereo audio outputs as well as individual track outputs 1 to 8. And, of course, it has MIDI – very easy to sequence up other synthesizers.

Quite a lot of functionality in a single box and easy to operate. The Studio 440 is fairly rare (about 600 made through 1986, ’87) and considered one of the pioneering forerunners to the later MPC units of the nineties.

This unit is in excellent condition – the cosmetics are very good, with tiny scratches around some of the edges of the enclosure. The main panel paintwork, graphics, knobs and switches are like new. No known issues operationally. Disks load fine, sound configuration, sampling, sequencing and audio all good, menus look normal. Display backlight is good, all hardware good. An easy instrument to get to know and operate, and sounds pretty good for a 12-bit sampler. Includes original manual (NOS from Wine Country), some service data, a number of sample disks, head protector disk (this will have to be ejected following transit) and a survival kit consisting of 8 spare touch pads (unused), two NOS pots, one switch module, one I-624 voice chip. The mains connection is standard IEC socket. The buyer will have to acquire their own mains cord that suits their country and change the internal voltage setting if necessary (explained in the manual. The present setting is 230V).

Weighs 10kg. Unit measures approximately 60x30x16cm (including manual, disks and spare parts). Packaged up, will be maybe 10% larger and heavier. The item is located in New Zealand. Examples of approximate door to door air-freight shipping costs, including insurance, at the time of writing, are: UK/Europe, 300GPB/Euros. USA, $500USD (US tariffs may change at short notice). Australia, $250AUD. Costs to be confirmed upon sale. Importing customs charges and tax are buyers responsibility. You're welcome to find alternative shipping at your expense and risk."

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Sequential Pro-One Analog Synthesizer: Famous 80s Hit Songs and Yazoo Sounds

video upload by RetroSound

"The Sequential Circuits Pro-One is one of the most legendary mono synthesizers of the 1980s—and responsible for some of the most iconic sounds of the synth-pop, new wave, and industrial era.
In this video, you'll hear famous Sequential Pro-One sounds and riffs used in real hits from the 80s.
From powerful basslines to screaming leads to sequenced arpeggios, the Pro-One stands for raw analog character and a sound that has shaped entire decades. Yazoo used the Sequential Pro-One in the album Upstais At Eric`s.

The Pro-One Sounds:
0:07 Yazoo Tuesday
0:26 Yazoo Don`t Go
0:40 Yazoo Bring Your Love Down
0:54 Yazoo Only You
1:11 Yazoo Situation
1:25 Yazoo Goodbye 70s
1:38 Yazoo Two Pieces
1:52 Berlin Metro
2:08 Berlin Masquerade
2:25 Peter Schilling Major Tom
2:48 Secret Service Flash In The Night
3:18 Beagle Music Like Ice In The Sunshine
3:30 Eurythmics Here Comes The Rain Again"

Follow the Sound I

video upload by Todd Barton

"Todd Barton with Buchla Music Easel and Eurorack

Making this public, my OSU Soundbox 4 virtual performance from 2021. Eager to perform live for Soundbox 9 in May 29-30.

The original post:

Dear Patrons, I'm so glad to share this little improvisation with you. It premiered last night at SoundBox4 https://liberalarts.oregonstate.edu/s... That festival is still going on today and tomorrow and it is free, you might like to check it out.
I surely miss performing live but when I turn on the video and audio recorders and imagine an audience it is an exciting alternative. I hope you enjoy this. All best wishes, Todd"

KOSMOS – A Generative MIDI Sequencer for RP2040 (DIY Project)

You might recall KOSMOS from previous posts here. Plantssystem aka GreyScale wrote in to let us know the source code has been released. Details and link to the github repository follow.

"KOSMOS is a compact, self‑contained generative MIDI sequencer built on the Raspberry Pi Pico (RP2040).

Power it on, and it immediately begins producing evolving melodic patterns — no DAW, no clock source, no setup.

The project combines a Euclidean rhythm engine, Japanese‑mode melodic generation (Hirajoshi / Insen / Miyakobushi),
and a 240×240 LCD UI for real‑time visualization of steps, probabilities, and phrase movement.

A small instrument with a surprisingly expressive voice.

---

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Meet the Akuto Studio Chord Machine AKT-0.1: first jam with Torso S-4

video upload by Freaky Tweaky



"SWITCH BETWEEN 3 DIFFERENT KEYBOARD MODES TO PLAY CHORDS AND MELODIES (TONNETZ, ACCORDION, PIANO)

ADD DEPTH TO YOUR TRACK BY USING THE SCREEN TO MIX UP TO 4 MIDI EFFECTS SIMULTANEOUSLY AND PLAY NOTES IN DIRECT, BIMANUAL OR STRUM MODE

USE THE ROTARY KNOB TO SEAMLESSLY NAVIGATE THROUGH SEMITONES, OCTAVES AND CONTROL THE PITCH TO TRANSPOSE ANY TYPE OF CHORD"

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MOS-LAB's E-Mu Modular Systems Update & Pricing

You can find demos in previous posts here.

TOP SYSTEM

- T/S/P VCO x3
- Universal Active Filter
- VCA
- RING MODULATOR
- CV LFO
- Digital Noise
- Sample & Hold
- Dual Envelope Generator
- KOV _ MIDI to CV / GATE

3620,00 €

MAIN SYSTEM

- VCO x3
- Universal Active Filter
- VCA x2
- Dual Envelope Generator
- Lowpass VCF
- Resonant filter x2
- Filter Controller
- CV LFO x2
- Ring Modulator
- Digital Noise
- Sample & Hold
- Mixer
- Multiple
- KOV _ MIDI to CV / GATE

6340,00 €

via MOS-LAB

"The systems shown above are provided as examples of possible configurations. Thanks to the fully modular architecture, virtually any custom system can be designed to match your specific requirements.

Systems can be freely configured using the complete range of MOS-LAB modules. To receive a quotation for your custom system, simply send the list of desired modules to info@mos-lab.com, and we will provide a detailed quote."

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Groovesizer MYNAH - Teaser

video upload by MoShang

"The MYNAH is a compact, DIY sampler that lets you record, chop, and perform your sounds anywhere.

Mynah is a compact, 6-voice polyphonic sampler you build yourself, powered by an ESP32 microcontroller and designed for musicians and sound explorers who want a truly tactile creative tool. Behind its approachable looks, Mynah hides a deep feature set including a 16-step sequencer, real-time and momentary effects like delay, reverb, filter, stutter, gate, and bit crusher. Mynah features dual audio inputs for recording from a microphone or line-in source. Samples are stored on SD card and loaded into RAM, giving you up to 16 samples per song and over two minutes of total sample capacity. Whether you’re programming beats, shaping textures, or performing live, Mynah puts serious sampling power in the palm of your hand.

Mynah‘s 16-bit, 32kHz ADPCM audio engine delivers the crunchy, characterful sound of classic samplers, while a companion web-based tool keeps your workflow modern and efficient. Manage your samples and songs, and export high-quality stems — all from your browser."

You can find more info at https://groovesizer.com/

Alisa 1377 - Raw Sound Demo

video upload by LFOstore

"#alisa #1377 #alisa1377 #synth #demo
Rare USSR synthesizer restored by Alex Taber!

It was made in USSR in 1985 at Luberetskiy Military Radioplant "Rodina" near Moscow.

ALISA synthesizers were made especially for experimental electronic music, creating of sound effects in soviet cinema and scientific acoustic researches. This unique instrument has warm, aggressive and absolutely original analog sound!

The synthesizer has 1 OSC with 4 wave forms, ADSR , filter, various modulations, vibrato and portamento effects.

OSCILLATOR: tune; octave +1/+2; portamento; wave forms: triangle, saw, square, odd harmonics; frequency modulation (for all 4 waveforms); impulse-width modulation (for square wave form) with impulse width and depth controls; harmonics (for odd harmonics wave form). You can use individual OSC waveforms (triangle, saw, square, odd harmonics) or mix them together to get unique sounds!

LFO: on/off modulation switch, two waveforms (triangle, square), modulation rate, modulation rate coarse switch - 1Hz/10Hz.

FILTER: cutoff, resonance, vibrato (filter modulation), ADSR, switch between filter control- keyboard or contour OSC (ADSR). The synths filter due to it`s original architecture can be used as additional oscillator when filter`s resonance knob in self-oscillaltion position and it sounds really weird and interesting!

AMPLIFIER: ADSR, main volume, on/off synthesizer."

Exit Earth 🌍 (Roland SE-02 // S-1 // TR-6S // Cre8audio Boom Chick // Arturia Minifreak // Hapax)

video upload by 2-Minute Warning

"In this video, I keep exploring the Hapax sequencer’s capabilities even more:
Program changes to switch between different presets (TR-6S and Minifreak)
Automation (enabling and disabling MIDI LFOs controlling parameters on the SE-02)
MIDI effects: Arpeggiator, LFO, Randomizer, Output, Scaler, Swing, etc.
Modulation
Fill button used to make drum breaks, mute some tracks etc.
Conditions for notes to play when a certain condition is met...

All 5 instruments in this jam are being sequenced by the Hapax.

The little trick I used here is that, thanks to the Hapax' MIDI Output plugin, the BASS track or the ARP track can sequence the S1, depending on which MIDI Output plugin I've enabled.

⚠️ Heads up: I miswired the Minifreak, so it’s totally out of phase - if you listen in mono, it’ll disappear. 👻"

Polyend Synth - "GRAIN Scape" Soundset

video upload by LFOstore

"Welcome to Polyend Synth 'GRAIN Scape' sound pack!

BUY: https://kav-sound-explorer.sellfy.sto...

'GRAIN Scape' is a pack created for Polyend Synth engine GRAIN Synth.

Engine GRAIN is a granular synthesizer which scans the audio file and
generates small grains of audio which can be manipulated and
tuned in the engine. Great for creating rich textures and ambient backdrop
pads and sounds.

'GRAIN Scape' sound pack contents: 10 Synth Scenes, 52 Polyend Synth Presets, 50 Samples.

Tailored for granular texture , cinematic, electronic, and experimental music production.

Whether you’re building immersive soundscapes or adding subtle movement to your compositions, these sounds will bring depth and emotion to your work.

•Designed for cinematic, atmospheric, and electronic use
•Includes granular texture and ambient backdrop pads and sounds.
•Works seamlessly in professional and experimental contexts

Includes:

Synth Scenes & Synth Presets files, samples, and detailed loading instructions.

For quick searching, new Synth Scenes and Synth Presets are marked with (Gs) and new Samples with (S) in front of the name.

Ready to use: All sounds are presented as demo versions (without adding external effects or post-processing to the demo tracks) with 1 Synth Preset, allowing users to evaluate their potential in the Polyend Synth effects section.

by: A.Kav"