Thursday, November 13, 2025
Sequential Fourm Overview and Demo
video upload by zZounds
"Explore the Sequential Fourm Compact Analog Synth! Watch this tutorial and overview to hear its rich analog tones, intuitive controls, and versatile features in action."
100 Oberheim Expander/Matrix12 single FX patches by Arthur Springer
video upload by Really Nice Audio
"So whilst on soak test I came across this crazy bank:
Notes from the .txt
ART SPRINGER STRIKES AGAIN (free)
Reviewed by Mike Metlay
All right, gang, I know what you're expecting in this space, so I'll oblige you and get it over with. Ready? Here goes: "WAHOOLAZUMA! Everybody's favorite twisted puppy is back from the audio torture chamber, and he's brewed up the most brain-slashing package of monstrous elektronoyze EVER! This stuff's great for warping your brain patterns, killing your cat, etc..."
Okay. Happy now? Good, now let's get serious. I heard from Art recently that he didn't get a terribly good response to his first mailing, and that few, if any, XUG members looked him up for his second set of patches
He seemed in a pretty good humor about it, but I couldn't help wondering if my presentation of his patch set didn't scare a lot of people away just by the wording. So, with a new patch set from Art (more diverse than the first two) in hand, I'd like to try again.
One of the most unhealthy trends I see in today's patch-editing software is the patch randomizer, that cute but overused utility that generates random patches at the click of a mouse. Literally thousands of these random patches are being sold by unscrupulous hackers as "original sounds," and a whole new generation of MIDI morons is springing up (pardon the pun) whose idea of "good programming chops" is the ability to tweak a randomly generated sound into something that (almost) works. No program of this type exists yet for the xpander, and I'm glad of it: the lack of computer-generated garbage on the market forces the user community to seek one another for new ideas, rather than some electronic I Ching. We come together in this Group to share ideas and learn from one another and I believe that studying another human being's work beats watching a computer coughing up random numbers. Which brings us to the music of Art Springer.
In my opinion, these patches are important. VERY important. I get so enthused about Art's work because I see in him a reflection of my college days, when I puttered about with ARP and Buchla modular monsters creating sounds for the sheer joy of it, putting together tonalities never before heard on Earth rather than trying to make a realistic shakuhachi. This was, and often still is, the meat and potatoes of electronic music to me. And when I hear Art telling me that people- Xpander users!-are returning his work because it's "too weird," I know something's wrong. The Xpander isn't a sampler or a digital piano. It's not an imitative instrument by nature. It's a powerful, multiply interfaceable modular synthesizer with a great deal of flexibility. Art Springer takes a stance on its use that no other Group member has had the courage to try: using its Power as a CV percussion device to enhance the sounds of his more traditionally oriented synths. (By the way, Lionel and I are big fans of his music ... it's not as inaccessible as you might think, and the odd tonalities make his dance pieces a lot of fun.) This is a new idea to a lot of you, and I don't blame you for being frightened. But it's better to learn from someone whose ideas differ from yours than to convince a computer to feed you something safe. I'd like to suggest something simple to start with: get one of Art's sound sets, trigger your Xpander with your drumbox, and try writing music with these sounds as part of the atmosphere rather than conventional drum noises. Or do something completely different. The important thing is to try to expand (hm) your horizons to something new. These sounds of Art's do take getting used to, but I think you'll learn a lot from them. Trust me."
Adventures in Audio - Yamaha PSS-130 - Simple Yet Endearing Toy Keyboard
video upload by Manitou Productions
"Adventures in Audio looks at the Yamaha PSS-130 toy keyboard from 1987. We'll explore the sounds, rhythms, and functions and take a look at the innards while we're at it. The PSS-130's older cousin, the PSS-30, makes a guest appearance.
Chapters:
0:00 No more noises please
0:22 Titles
0:29 Intro
1:24 Let's turn it on!
1:37 The sounds
5:09 The rhythms
7:08 Melody Memory
7:55 Demo song
8:21 Enter the PSS-30
9:27 Duelling keys
10:49 Buzz
11:15 Duelling rhythms
12:17 Duelling demo songs
13:14 The guts of the PSS-130
17:21 The guts of the PSS-30
18:20 Turn me off!
18:57 Outro
19:25 Ivy's Corner"
Yamaha RX 17 + Patch Bay, Pitch Control and Joystick Mods
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Video in the listing for another mod previously posted here.
"One-of-a-kind modified Yamaha RX 17 1987 12-bit programmable drum machine featuring two ROM modulation patch bays, a joystick for performance control of four pre-set effects (which may also be combined on the diagonal axes) and pitch control. These modifications generate an array of bit crushed, flanging, glitching, distorted, delayed, tonal effects, flams and digital noise. Five patch cables included- these can be 'stacked' for even deeper audio manipulation. The unit functions as normal when the patch bay is not in use. Only one available.
13 pads: tom 1/conga 1, tom 2/ conga 2, hi hat open/bongo high, ride/agogo high, cowbell/whistle, timbale high/ cuica high, bass drum/ tambourine, snare/rim shot, tom 3/conga low, hi hat closed/ bongo low, crash/agogo low, clap/shaker, timbale low/cuica low.
Accent, level, pan for each sound.
User Patterns: 999.
User Songs: 10.
Tempo Range: 40 - 240 BPM.
MIDI in/ out.
ROM Size: 26 PCM waveforms at 12-bit resolution.
Screen: 16x2 character display.
Weight: 1.5 kg."
via this Reverb listing
Video in the listing for another mod previously posted here.
"One-of-a-kind modified Yamaha RX 17 1987 12-bit programmable drum machine featuring two ROM modulation patch bays, a joystick for performance control of four pre-set effects (which may also be combined on the diagonal axes) and pitch control. These modifications generate an array of bit crushed, flanging, glitching, distorted, delayed, tonal effects, flams and digital noise. Five patch cables included- these can be 'stacked' for even deeper audio manipulation. The unit functions as normal when the patch bay is not in use. Only one available.
13 pads: tom 1/conga 1, tom 2/ conga 2, hi hat open/bongo high, ride/agogo high, cowbell/whistle, timbale high/ cuica high, bass drum/ tambourine, snare/rim shot, tom 3/conga low, hi hat closed/ bongo low, crash/agogo low, clap/shaker, timbale low/cuica low.
Accent, level, pan for each sound.
User Patterns: 999.
User Songs: 10.
Tempo Range: 40 - 240 BPM.
MIDI in/ out.
ROM Size: 26 PCM waveforms at 12-bit resolution.
Screen: 16x2 character display.
Weight: 1.5 kg."
Voltage Multistage 16 : Design, Vision and Evolution
video upload by Verbos Electronics GmbH
"An inside look into the design, vision and evolution of the Voltage Multistage from Verbos Electronics designer and founder, Mark Verbos.
Video by:
@coquinati_music
@lucreziacapitanio"
Voltage Multistage 16 - Nested Loops
video upload by rbos Electronics GmbH
"In this patch, we demonstrate one way to seamlessly jump between two instances of multistage voltage, creating nested loops to manipulate and modulate."
NYX Reissue by Dreadbox
video upload by Dreadbox
"It’s been a while since we released the NYX Reissue as a DIY kit, and you loved it! So, we decided to bring it back to life. 🌌
The NYX Reissue is here!"
329.00 € exc VAT available soon
VOID9 MÕNAI
via VOID9


"MÕNAI is a standalone portable multitimbral synthesizer that goes wherever your creativity takes you. The integrated battery eliminates the need for power outlets, while the compact form factor fits comfortably in a backpack. Whether you’re sketching ideas on location or performing on stage, MÕNAI delivers comprehensive synthesis capabilities without compromise.
Planned beta version release: Summer 2026
Every control on MÕNAI is positioned for intuitive access. The 8 endless encoders provide tactile feedback without physical limits, letting you sweep through parameters naturally. Touch-sensitive strips respond to the subtlest gestures – the left strip dedicated to modulation, the right offering multi-touch control across 20cm of expressive surface. The 2-axis joystick adds another dimension of real-time control.
MÕNAI integrates seamlessly into existing setups. USB Host port accepts MIDI controllers, expanding your playing surface. Standard MIDI I/O connects to legacy gear. Four CV outputs – pitch, modulation, velocity, and gate – bridge the gap to modular systems. Line-level audio input lets you process external sources through MÕNAI’s effects. This isn’t an isolated instrument; it’s a hub that enhances your existing workflow.
A Tool for Sonic Exploration
MÕNAI encourages experimentation. The two built-in microphones capture audio for immediate processing or sampling. The pedal input adds hands-free control. The combination of traditional keyboard layout and function keys provides both familiar territory and new possibilities. This is an instrument that rewards curiosity – the more you explore, the more it reveals.
The CNC-machined aluminum enclosure isn’t just aesthetically refined – it’s engineered for durability. Sandblasted and anodized in matte black, the body resists wear while maintaining a professional appearance. The integrated battery means you’re not tethered to power outlets. Whether you’re sketching ideas on a train, performing in a park, or working in a studio without available outlets, MÕNAI adapts to your environment rather than constraining it.
The workflow is immediate. Controls are positioned for intuitive access, with visual feedback from 109 LEDs across the interface. The high-resolution display renders waveforms and parameters clearly. Multiple synthesis engines can run simultaneously, each with dedicated effects and modulation routing. Sequencers maintains precise timing whether you’re working with internal sounds or triggering external gear."
User Interface
52 keys
29 piano keyboard layout keys (2 octaves and 1/3)
23 function keys
8 endless potentiometers
2 touch-sensitive strips
Modulation (left, 8cm)
Multi-function (right, 20cm)
2-axis joystick for expression parameter control
6-axis motion sensor
Volume control knob with audio level indicator strip (stereo)
High-resolution 3.1″ LCD screen
Total of 109 LEDs: 88 RGB and 21 single-color LEDs
2 microphones for audio recording
1 USB port for battery charging and computer connection
1 USB Host port for device connection (e.g., MIDI keyboard)
Line-level audio input
2 x audio outputs
3.5mm TRS MIDI input and output
Pedal input
Sync out / in
CV outputs
CV Pitch
CV Modulation
CV Velocity
CV Gate
Dimensions: 36.5 x 12.3 x 18.7 cm
Schlappi 100 Grit, AntiMatter BrainSeed, & BASTL Instruments Dark Matter
Note: links to listings are affiliate links for which the site may be compensated.
Three listings from supporting member brian comnes on Reverb here.
Instruction manuals for 100 Grit & BrainSeed pictured below.
"The 100 grit is a distortion, VCA, and low pass filter module with 8 brass touchpoints.
Features:
8 brass touchpoints
2 inputs to transistor core low pass filter
Voltage control over frequency, resonance, and gain
OTA VCA with soft saturation characteristics
Distortion circuit based around a vintage headphone amplifier driven into instability
Three position x100 gain switch with off, on, and momentary on settings
Each input and cv input is normalled to a different feedback path (6 total)
Seperate outputs for the VCA and distortion
Can operate as a vintage voiced VCA and LPF or a screaming distortion and noise effect
All analog design"
Three listings from supporting member brian comnes on Reverb here.
Instruction manuals for 100 Grit & BrainSeed pictured below.
"The 100 grit is a distortion, VCA, and low pass filter module with 8 brass touchpoints.
Features:
8 brass touchpoints
2 inputs to transistor core low pass filter
Voltage control over frequency, resonance, and gain
OTA VCA with soft saturation characteristics
Distortion circuit based around a vintage headphone amplifier driven into instability
Three position x100 gain switch with off, on, and momentary on settings
Each input and cv input is normalled to a different feedback path (6 total)
Seperate outputs for the VCA and distortion
Can operate as a vintage voiced VCA and LPF or a screaming distortion and noise effect
All analog design"
Crawling Toward The Sun by Mike Wallace Featuring the Melbourne Instruments Delia Synthesizer
"Recorded, mixed and mastered by Mike Wallace in 2025, made solely on the Melbourne Instruments Delia synthesizer.
Rooted from a seed, destined to withstand the climb
What started as photosynthetic dreams began the ticking of time.
Slowly sprouting before ones eyes, the journey seemed too far.
The heat of the day caused blooming at night, coloring the sky with stars.
The joy of life was short-lived, as the sky began to mud
In a flash of light, the day went dim and soiled the ground with flood.
Time slows down when rain from heaven finds the plant off guard
The aftermath of lessons in life grows petals back twice as hard
Forced to remain resilient and calm. the plant now moves with ease.
The rain from summer turns frozen for winter-like icicles melting through trees.
With droplets of water penetrating the soil, the ticking of time has begun.
The day is fresh, a now journey awaits, as the plant crawl's back toward the sun.
-MW"
PDF press release with additional details on the collaboration with Melbourne Instrumments below.
FOURM | MUSIC DEMO | SEQUENTIAL SYNTH (analog all-use sounds, no talking) 🚀🔥
video upload by FutureMusic.es
"Immerse yourself in the rich analog tone of the Sequential FOURM, showcased in this exclusive non-talking Music Demo featuring Zígor López, Sequential’s Product Manager. FOURM is a four-voice analog polyphonic synthesizer that brings the iconic Prophet sound into a compact, affordable form factor, radically redefining expressive playability for modern musicians and producers alike.
[ESP] Sequential FOURM, un sintetizador analógico polifónico de cuatro voces que combina el icónico sonido Prophet con la tecnología y diseño modernos en un formato compacto y accesible. En esta demo musical exclusiva, Zígor López, Jefe de Producto de Sequential, nos guía por las posibilidades expresivas que ofrece FOURM, ideal para músicos y productores que buscan combinar historia y vanguardia en una sola máquina."
PROPHET 12 - SYNTH TRACK
video upload by Mamotreco
"Full track recorded entirely with Dave Smith Prophet 12 (desktop version) (apart from part of the drums).
Video footage from Nuria, Pyrenees. Shot using Sony HX99 camera.
#synth #prophet12 #electronicmusic
Current channel music compilation: https://mamotreco.bandcamp.com
Previous music releases available here: https://synthandsundry.bandcamp.com"
SYNTH-WERK to Release SW MOON 505 Multimode Filter
via SYNTH-WERK:
"The moon has risen...
Our first Moon Modular module after the sudden and unexpected death of our friend Gert Jalass.
The SW MOON 505 Multimode Filter is available and can be ordered from us now.
It is the first product in the Moon Modular filter series. More will follow…
Price: 430 Euro plus TAX"
Check out the only demo of the original Moon Modular branded 505 featured on the site here.
PDF spec sheets below.
The Concrete Box
video upload by Memetune Studio
"Here is a video about the small Eurorack recording / FX box I have recently put together, which I call 'The Concrete Box'
In the video I describe the various modules and how I work with them as a way of recording and manipulating other instruments (in this case a vintage Buchla 100), to create live performances and evolving soundscapes"
NOISEVEMBER the 13th - LOST KRELLS
video upload by FL3SHB4CK
"#noisevember25
LOST KRELLS
Flurry, Zadar, Oneiroi
Make some noise!
#ambient #electronicmusic #experimental
@Befacosynth @intellijel @xaoc_devices"
New Beam Nodes: PORTALS and TAPS
video upload by DATABROTH
"Read my full review here: https://www.databroth.com/blog/portal...
You can pick up Beam here: https://bit.ly/4hQW1Co
check out my wavetables and presets at https://gumroad.com/databroth
join my Patreon https://www.patreon.com/databroth"
Generative Patches: Behringer Edge+Crave+Spice Live Jam Demo
video upload by Anton Anru
"🟪🟧🟥 ECS Generative is a collection of 25 patches (+Crave patterns) for the semi-modular system by Behringer: EDGE + CRAVE + SPICE.
This genre of sound design is highly popular within modular culture, and the Behringer synths offer an excellent feature set to explore it.
Controlled chaos and randomness, probability, non-repetitiveness, tempo shifts, pattern uniqueness, the alternation of short and long sounds, unexpected changes, silence and density, harmonic and FX-like tones, and glitchy bursts throughout sequences — all of these elements are part of the soundset.
📦 Get these patches: https://antonanru.sellfy.store/p/ecs-...
The Unique Roland SH-5 from 1975
video upload by Alex Ball
"A look at an unusual classic from Roland's back catalogue, the SH-5 from 1975."
0:00 Intro Jam
1:14 The SH-5
1:41 The Look
2:04 The Signal Flow
3:25 The Ring Mod
4:32 The Filter Section
7:46 The VCA
9:08 The Computer
11:06 Summary
12:05 Patron Jam
Roland SH-5 44-Key Synthesizer Serviced
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Roland Jupiter-X Digital Keyboard Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Roland HS-60 Programmable Polyphonic Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Doepfer Darktime Desktop Sequencer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"Doepfer Darktime analog sequencer w/ blue leds, tested in great working condition. Includes non-orginal power supply."
via this Reverb listing
Additional SYNTH CITY Listings
"Doepfer Darktime analog sequencer w/ blue leds, tested in great working condition. Includes non-orginal power supply."
Van Daal Electronics - Compact Phasing X r3 Krautrock Phaser
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Critter & Guitari - Bolsa Bass
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional NOISEBUG Listings
via this Reverb listing
Additional NOISEBUG Listings
How to use S&H, comparators and rectifiers, feat. Worng Electronics Quiver
video upload by Tom Churchill
"This video is all about cool things you can do with some basic utilities in a modular synth. In particular, I want to explain how you can massively expand the sonic range of a basic oscillator with a few simple tricks. I’ll show you a couple of ways to use sample & hold, both at audio rates and for more subtle ‘humanising’ modulation. I’ll explore using a rectifier to create octave-up copies of simple shapes and to transform basic waveforms in more radical ways. I’ll go into extreme PWM territory with a comparator, as well as using it for some pitch-dependent switching to spice up sequences. And I’ll show you how you can use analogue logic processing to turn a mono oscillator into a stereo one."
Chapters:
00:00 Intro & patch previews
02:59 Downsamling audio with S&H
06:01 S&H for subtle random modulation
09:00 Octave doubling with a rectifier
13:17 Rectifier as an extreme waveshaper
17:30 Enhanced PWM with a comparator
21:18 Comparator as a switch controller
23:38 Analogue logic as a stereo-iser
Annoucing Play+ Firmware 1.3 / New Dirt Synth Engine
video upload by Polyend
"The Play+ Firmware 1.3 update adds a new Synth engine, Dirt. Dirt contains a warpable core oscillator and multi-mode waveshaper, perfect for creating thick basslines, textured pads, or glitchy sound collages. Additional features include a redesign of the Synth patch editor and the SD card storage via USB. This free update is available to download now - https://polyend.com/downloads/"
Play+ Dirt Synth / Just the Sounds
video upload by Polyend
"Hear the sounds of the new Dirt synth engine. Dirt has been added in Play+ Firmware 1.3. The Dirt engine is designed around waveshaping and warping. Choose from 13 waveshaper modes that combine shaper modulation control, flexible filter routing, and gain staging for a massive palette of overdriven timbres."
Antonus 2600 - Test Drive 2
video upload by Tumeni Knobs
Part 1 here
"This is an extended version of the patch I created for the Antonus 'Patch Challenge'. The 90 second version was featured on their social media sites. :-) I really enjoyed listening to this patch and messing around with it, so thought I should record a longer version. This is a combination of generative and performance patching in that I could let it run for hours and it would be dynamic enough to listen to in the background, but it also was good fun to actively mess around with.
The hardware is the Antonus 2600 DIY version, with the Antonus SidecARP Eurorack expansion case, the Arturia KeyStep Pro and Fractal Audio VP4.
SidecARP modules are, from left to right:
ALM - Pamela's New Workout
Stochastic Instruments - Stochastic Inspiration Generator
Qu-Bit - Surface
Addac - Swell Physics
Molten Modular - Motion MTR
Black Corporation - Deckard's Voice
Make Noise - Mimeophon
Qu-Bit - Nautilus,
ALM - S.B.G Pro
Roland - 531 Mixer
KSP provides a clock signal to PNW and the five step "anchor" arpeggio to the 2600 Osc 1. SIG provides three separate sequences to ARP Osc 3, Surface and Deckard's Voice. The notes are based on the Dm scale. 2600 Osc 2 is LFOing the Cutoff. 2600 Noise is randomly mixed in for added texture. VP4 is used for some subtle flanger and reverb on the 2600 (through the S.B.G. Pro), but I also mix in some clock-sync'd panning and some delay. Surface goes into Nautilus and Deckard goes into Mimeophon. All mixed together in the Roland 531 mixer. Recorded on iPhone 12 Max through an iRig Pro from 531 line outs."
Korg Kingkorg Demo
video upload by Panu M Savolainen
"Multitracked demo of Korg Kingkorg. No external fx used.
Demo at Bandcamp: https://panums.bandcamp.com/track/kor..."
Digitone 2 / Analog Heat+FX
video upload by Electric Bear
"Picking up somewhere in this #dawless jam with the @WeAreElektron digitone 2 and analog heat+fx. #electronicamusic"
Filtered Synths, Tape Loop Noise & Dub Techno Atmosphere | Onset 2025-11-13 by atnr
video upload by atnr
"This piece was created using the @NovationTV Circuit, @teenageengineering OP-1 field, and a tape loop. It blends filtered synths, delayed drum patterns, and field recordings into a dub-techno soundscape.
On the OP-1 field, vocal samples are used to create chord tones that are looped with the ENDLESS sequencer. The filter is opened and closed at various points to alter the timbre. Reverb is added through the @strymon NIGHTSKY, where the HIGHCUT filter is also adjusted to shape the tone.
A cassette player @WeAreRewind1 holds a one-minute endless tape containing field recordings captured in a park. These sounds are processed with @ChaseBlissAudio MOOD MKII and LOSSY, adding micro-loops, reverb, filtering, and textures between noise and ambience.
The Circuit plays the rhythm pattern. Its built-in filter is manipulated during performance, and additional delay is applied using the @strymon TIMELINE.
My Latest Album
https://artists.landr.com/lofi_to_hifi"
Can We Fix This 1970s JEN SX1000? | Vintage Synth Rescue!
video upload by THIS MUSEUM IS (NOT) OBSOLETE
"Restoring the museum's JEN SX1000 back to life.
--------
Acid Solder Club Workshop Tickets
https://www.eventbrite.com/e/acid-sol...
--------
Support the Museum and see more videos and stuff Patreon / lookmumnocomputer"
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
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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




































