Roland Jupiter-6 with Flight Case and FV-200 Expression Pedal

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via this Reverb listing

Additional CONTROL Listings

"Fully tested, perfect working condition. Professionally serviced by Patchwork.nyc."

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Kurzweil K1000 w/ Original Box

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via this Vemia listing

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"Sample playback and synthesizer keyboard from 1988 fully loaded with sounds from the Kurzweil K250 megasynth. 76 note keyboard. 24 voice multitimbral polyphony. Display a bit dim but readable and a few keys in the lower register need extra pushing, apart from this, everything working fine. Comes with a couple of original Kurzweil footswitch pedals and original box."

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Yamaha CS70M SN 1145

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"Here is my CS70-M, owned for over 20 years. recently fully serviced by renowned tech Benoit Guivarch in Paris. included rare 'voice library' preset book, working card reader ! magnificent beast. Probably a bad idea to ship via transporter, local pickup would be best, open to discussing options."

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Yamaha SK20 SN 3632

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"Nice condition vintage analogue 'Symphonic Ensemble' polysynth / string synth / organ with excellent control over tremolo, ensemble and vibrato. With three outputs you can send different parts to different effects. The string volume pedal is also very effective at breathing life into sounds. There is a multi-pin output for a rotary speaker - not checked. But everything else was serviced in 2024. As usual, the massive wood-veneer endcheeks are not in perfect condition, but the control surface and keys are very good. Serial number 8632, switchable voltage, currently with a UK plug. These are solid machines: packing 18GBP."

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Akai MFC-42 SN 837279

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Akai MFC-42 SN C0145-00458

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Sanjay C went to the SYNTH EXPO...these BLEW him away!

video upload by Sanjay C

"🚀 Free Guide: Improve Your Studio Today — https://www.sanjayc.com/free
I went to Synth Expo 2025 and got hands-on with some of the most exciting new gear on the floor, including the Sequential Fourm and Soma Labs Flux. In this video, I’ll show you standout finds from brands like Roland (TR-1000), Kurzweil (K2061), Landscape Synths, Synclavier, Arturia, Daydreamer Synth, Novation (Launch Control XL), Bored Brain, Synth Rise, Groove Synthesis, Entropy & Sons, 1010 Music, Vermona, and Copper & Cedar (ProxiMIDI). From experimental designs to modern classics, this was a synth lover’s dream — and I’ve got the highlights right here.

#MusicStudio #MusicProduction #SanjayC

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Timestamps
0:00 Sequential
0:31 Roland
1:03 Torso
2:23 Kurzweil
2:45 Landscape
3:23 Synclavier
4:31 Arturia
5:52 Soma Labs
6:35 Daydreamer Synth
7:10 Novation
8:19 Bored Brain
8:43 Synth Rise
9:18 Entropy & Sons
9:48 1010Music
10:36 Vermona
11:01 Copper & Cedar"

Frap Tools: Finally we ACTUALLY PLAYED a modular synth!

video upload by Frap Tools

"In today's study, ‪@francescogennarimusic‬ guides us through the construction of a fully-functional polyphonic modular synthesizer that can be played with a keyboard AND sequenced at the same time! Check out the video to see how he managed to get FIVE voices, one of which with the unique character of formant oscillators."

Time stamps:
00:00 Introduction
00:23 Modular performance
04:22 Track structure overview
04:49 4-Voice polyphonic synth routing
07:33 Usta sequencing and modulation
08:04 Formant oscillator with Falistri
10:27 Bass line
11:02 Effect section: Desmodus Versio as reverb
12:15 Effect section: FX AID XL as chorus

Original track 'Studio No.7' composed by @francescogennarimusic
Instagram: / fncgennari
Linktree: https://linktr.ee/francesco.gennari
Bandcamp: https://francescogennari.bandcamp.com...
Soundcloud: / user-351738626
‘Studi’ takes its cue from the tradition of the Étude, treating each track as a focused investigation into sound, structure, and technique.

Artwork by Daniel Hicks
Instagram: / mrmrsir
Website: https://danielhicksart.com/

When the Spec Becomes Code: Building a Norns Instrument with AI

video upload by Lesjamusic

"Building PolyNexus: A Complete Norns Instrument, using Claude AI

I used to struggle with "vibe coding" - throwing prompts at AI and hoping for working software. Then I discovered the article "When the Spec Becomes the Code," and everything changed.

Spec-driven development (SDD) transformed my workflow. Instead of generating code through endless prompts, I focus on creating clear specifications first. The spec becomes the blueprint, and Claude AI helps compile it into working code.

PolyNexus is the result of this approach - a complete generative polyphonic instrument for Monome Norns that evolved far beyond my initial vision. What started as a chord sequencer grew ambitious: I built PolyVoice, a custom 6-voice synthesizer engine in SuperCollider, based on three Plaits oscillator models with wavefolding, sample rate reduction, and comprehensive modulation.

The best part? Spec-driven development gave me the confidence to tackle SuperCollider synthesis, something I wouldn't have attempted with traditional "vibe coding."

🎹 PolyNexus Features:

PolyVoice Synthesis Engine: • Custom 6-voice polyphonic SuperCollider engine • Three Plaits-inspired oscillator models (morph, waveshaping, wavetable) • Wavefolding for harmonic complexity • Sample rate reduction for lo-fi textures • Independent LFOs and envelope control per voice

Generative Sequencer: • 16-chord harmonic palette (monome Grid row 1) • Probabilistic note retriggering engine • Random chord sequencer for compositional surprises • Bass and sub-bass sequencer for rhythmic foundation • Real-time playable notes (Grid row 5)

Analog-Style Effects Chain: • Tape character: flutter, wow, saturation, tape noise • Tape-style delay with feedback and rate control • Multi-mode filtering for tone shaping

🔗 Resources: • Jean Bovet: "When the Spec Becomes the Code" - / when-the-spec-becomes-the-code • PolyNexus (coming soon to lines community) • monome Norns - https://monome.org • Mutable Instruments Plaits • SuperCollider synthesis language

⏱️ Timeline:
0:00 - Introduction: The Struggle with Vibe Coding
01:51 - Discovery: Spec-Driven Development
04:33 - What is PolyNexus?
12:37 - Live Performance

Want to try spec-driven development? Start by describing what you want to build in clear, detailed language. Iterate on the specification until it's crystal clear. Then let AI help compile it into code. You'll be amazed at what becomes possible."

Max 9.1 Update

video upload by Cycling '74

"Our first big update since Max 9 brings new ABL objects, new Jitter FX, JavaScript V8 features, and more. Now available on our Downloads page.
ABL Updates

We have added 8 new ABL objects that offer both practical solutions and new creative possibilities. Four new device objects (⁠drumsampler, compressor, autofilter, and drumbuss~) and four new lower-level dsp objects (meldfilter, meldosc, pitchestimator, transform) are included.

All ABL objects also now have an "@ins" attribute to specify custom inputs for controlling specific parameters with floats or signals.

New Jitter FX
With two new vintage-inspired effects (jit.fx.vcr and jit.fx.crt) along with some exciting geometrical interventions (jit.fx.ge.pattern and jit.fx.ge.lineinterp) and image enhancements (jit.fx.tiltshift, jit.fx.camera, and jit.fx.kuwahara), Max 9.1 offers new effects that will have an immediate impact on your visuals.
More Updates in Max 9.1.0
Function Stepping

Three new MSP objects offer new ways to work with function outputs. Designed to work together, stepdiv~ and stepfun~ allow for playback of each function segment using ramps. The stepcounter~ keeps count of incoming ramp signals with some interesting patterning options.

JavaScript V8 Features

Our Javascript V8 engine gets new features including Rx256 and ParameterInfoProvider classes, XMLHttpRequest, SQLite/SQLResult, and the SnapshotAPI, as well as improvements to v8 Buffer interactions. The v8ui now supports onkeydown and JitterListener events.

New Codebox and UI Features

Max 9.1 includes a new text.codebox object. The messageview object displays a stream of messages, and listbox and textbox objects provide interactive display of lists and messages."

More info: https://cycling74.com/products/max-9/...