PlantsSystem-PRA32-U

video upload by plantssystem

"Build your own digital synth with PRA32-U × Raspberry Pi Pico!

ISGK Instruments' PRA32-U is a digital synthesizer that uses Raspberry Pi Pico.
The Pico and various circuits can be arranged smartly, making prototyping and modification a lot of fun, and allowing you to quickly put your ideas into shape.
This time I put together everything from MIDI input to sound generation and output, and it was extremely easy to use as the foundation for a homemade synth, and it was a very fun experience to build it."

https://risgk.github.io

Overview

4 Voice Polyphonic/Paraphonic Synthesizer for Raspberry Pi Pico 2/RP2350

Built-in Chorus and Delay FX

Controlled by MIDI -- PRA32-U2 is a MIDI sound module

Having the function of writing the parameters to the user programs and the flash

Modifiable with Arduino IDE and Arduino-Pico (by Earle F. Philhower, III)

An I2S DAC hardware (e.g. Pimoroni Pico Audio Pack) is required

PWM Audio can also be used instead of I2S (PWM Audio does not require an I2S DAC hardware)

Prebuilt UF2 files ("bin")

"Digital-Synth-PRA32-U2-Pimoroni-Pico-Audio-Pack.uf2" is for Raspberry Pi Pico and Pimoroni Pico Audio Pack

"Digital-Synth-PRA32-U2-PWM-Audio.uf2" is for Raspberry Pi Pico and PWM Audio

Bottom pic with control panel.


Demos by the maker Ryo Ishigaki:

MIDI Controller PRMC-1 (type-0) Demo (2025/04/13)

video upload by Ryo Ishigaki

Digital Synth PRA32-U with Panel Prototype 2 Audio Demo (2024/09/11 v2.5.1)

video upload by Ryo Ishigaki

"Healing" - A Liven Evoke Jam 7/21/2025 #synth #432hz #sonicware #meditationmusic

video upload by I Love Cats and Synths

"My first original jam with the Sonicware Liven Evoke synth. Since I'm going through an emotional and spiritual healing process myself, I decided to call this 'Healing'."

Reco-Synth Mutuca AMNO - Some Sounds

video upload by Arthur Joly

Patch sheets at www.recosynth.com

Duskash

video upload by Uncertain Music Corps

"A widescreen drone created with the excellent Graintopia script on the Norns with major controls mapped to the Roto-Control from Melbourne Instruments.. Bass reinforcement from the CPM DS2.

Graintopia operates in an area somewhere between tape music and granular synthesis with a dash of chance thrown in for good measure. Which suits me just fine.

Norns shield output is a little noisier than I would like but let's call that character.

There are no external effects in play on this take."

10 Synth Tips For Everyone

video upload by craigwilliamsmusic

"This week, we look at 10 synth tips to expand your knowledge on sound design.

Free Samples Here - https://www.craigwilliamsmusic.com/fr..."

00:00 Intro
00:31 Tip 1
02:04 Tip 2
04:35 Tip 3
07:05 Tip 4
08:30 Tip 5
10:15 Tip 6
13:36 Tip 7
15:10 Tip 8
16:31 Tip 9
18:54 Tip 10

FM Radius by Koma Elektronik

quick demo/review video upload by Meska (Meska)

"Quick demo/review of the FM Radius by koma elektronik
RTFM: https://koma-elektronik.com/new/wp-co..."

"The FM RADIUS is a CV-tunable radio receiver capable of receiving radio broadcasts on the FM bands. It provides the user the ability to catch radio transmissions for further manipulation.

The CV Radio is capable of catching the strongest broadcasts without any external antennas but for better reception, an external antenna should be used.

Use it as a crazy oscillator, infinite sample generator or just listen to the news during your office break."

WORNG Electronics Quiver LFOs

video upload by WORNG Electronics

"Four analogue LFOs drive the modulation of Quiver, with cycle times varying from 33ms to over 35 minutes. They're controlled with a Rate macro and CV, and the three slowest LFOs each have an additional CV control for further control. This patch demonstrates the various LFO outputs by modulating the cutoff of a Parallax filter."

Quiver Analogue Modulation Toolkit

Quiver is a 100% analogue patch-programmable modulation powerhouse. Quiver’s 16 input, 18 output interface contains:
- Four triangle core LFOs with macro control, individual CV control, and cross
modulation
- Analogue wave folder/saw phase shifter
- Full wave rectifier
- Analogue noise source
- Voltage comparator
- Sample and Hold
- Analogue Min/Max
- A three input, six output Modulation Cube based on the acclaimed Vector Space
circuitry
‍
When left unpatched the different processors flow from one to the next with cleverly designed normalling, giving 18 modulation sources to use throughout your system.
‍
Quiver is the perfect quiver of essential modulation basics to get your modular system started, or to add a high quality, fully patchable, modulation workstation to your existing system.
‍
When designing Quiver we asked the question 'What collection of CV processors can greatly expand the capacity of every modular system?' and then carefully chose normalled connections and added four analogue LFOs to drive them. The result is like a mini modular system in itself, creating complex evolving modulation that never repeats, but is able to be quickly reconfigured with a patch cable or two.

HAPAX 2.20 – MIDI DRUM PATTERNS IMPORT/EXPORT

video upload by Squarp instruments

"✨ Hapax just got even more powerful!

Hapax OS 2.20 brings a host of new features, improvements, and bug fixes—but the standout addition is the ability to import and export MIDI drum patterns.

This opens up exciting new workflows for integrating the Hapax with your DAW or other gear.

In this video, I walk you through how the new drum pattern features work, and give you a taste of a few patterns we put together to help you get started. Whether you're building beats from scratch or integrating with your DAW, this opens up a whole new range of creative possibilities.

If you're a Hapax user—or considering becoming one—this update is definitely worth checking out."

🕘 Timestamps
0:00 Intro : jam
1:40 How to export a pattern
2:00 How to import a pattern
2:47 How to mix & match patterns

Hainbach Introduces outta-control Italian Synths!

video upload by Anthony Marinelli Music

"When I visited Hainbach at his amazing studio in Berlin, and he introduced me to a whole new world of sound—rare Italian synths that completely reset my thinking. The Farfisa Polychrome is hands down the best string machine I’ve ever heard, with rich choir and synth textures and a built-in phaser that sounds like no other effect I’ve used. The Webo Welson (late 70's) is a rockin’ beast with ripping oscillators, tearing portamento, and beautifully saturated presets that just ooze character. And then there’s the Realton Variophon Gig—a breath-controlled synth that lets you shape the timbre with your mouth. It’s expressive, has rich variable noisy modulation goodness, and is unlike any vocoder or synth I’ve ever played.

Hainbach really opened my ears to a sound palette I didn’t even know existed. He’s a very generous to hang with, and I left his studio totally inspired to create new music. You will too."

Syntrx 2 Tutorial - ON THE RUN

video upload by SMV Producer

"Sound banks available for purchase at: https://gumroad.com/smvproducer

Other links:
Bandcamp : https://sergiomassimilianovarvazzo.ba...
Instagram: / smv_producer
Smartlink: https://ffm.bio/smv_producer"

Lacrima Versio: A Filter with Gritty Attitude

video upload by Metamyther

"In this deep dive, we explore Lacrima Versio, the underrated gem in Noise Engineering's Versio universe. Designed for Eurorack synth power users, Lacrima is a stereo state-variable filter with built-in saturation, audio-rate modulation, envelope following, and lush chorusing. Inspired by the iconic Mutron III guitar pedal, this module channels vintage autowah energy into modern industrial techno and experimental electronic music contexts. Whether you're building gritty textures or making your oscillators scream, this video demonstrates why Lacrima will be your essential secret weapon. Perfect for modular synth heads, electronic producers, and anyone obsessed with hardware sound design. Watch, patch, and rediscover filtering – with attitude."

How to use the Mixer from SurgeXT in VCV Rack

video upload by Omri Cohen

"You can find this patch, along with many others, available on my Patreon page - / 133341276
Here you can find the document of tips and tricks - / 119073839"

Introduction - 00:00
Mixing waves - 00:22
Ring modulation - 07:46
Mixing modulation - 16:16
Mixing envelopes - 20:24

Technics SX-WSA1R Acoustic Modeling Rackmount Synthesizer w/ Original Box

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

via this eBay listing

CLICK FOR MORE »

1978 RSF Kobol

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

via this Reverb listing

"Here is a rare occasion to buy a RSF Kobol and in full working condition. Internal battery has been replaced. Cosmetic condition as per the pictures, close to excellent apart from the cracks due to its age. It comes with its original paper manual (not in the pictures). The RSF Kobol is one of the very best vintage monophonic synths ever designed with its distinctive powerful and precise sound and one of the sexiest User Interface ever designed. Plus it has 16 memory slots and the ability to sequence these slots making it one of the most powerful sequencers of its time. You can trigger it from any 5V clock (eurorack standard).

In addition to the original paper manual this Kobol also comes with a very sturdy, very heavy (27 kgs !!) custom wooden box with foam inside, however you can have the it shipped without the case if you prefer so, since the case alone weighs more than twice the synth itself!"

CLICK FOR MORE »

Sequential Circuits PROPHET 10 Rev3 Dual Manual 10-Voice Polyphonic Synthesizer

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

via this Reverb listing

"The rare flagship holy grail of all Sequential Circuits synths!

The mighty dual manual PROPHET 10!

Priced right to sell quickly, the Prophet 10 is literally TWO Prophet 5's in one synth with extra abilities such as layering, bi-timbrallity, alternating notes between upper and lower voices etc.

This rarely seen monster analog synth is by far one of the fattest and nicest vintage synthesizers. The Prophet 10 is simply two glorious Prophet 5 synthesizers stacked together. That gives 10 voices with 20 of Sequential's unique analog VCO oscillators at 2 per voice for a big fat analog dream!

20 oscillators (2 per voice), 10 voices, 2 independent 61 note keyboards and all the great sounds and editing facilities as the Prophet 5! Built in Tuning tones and Auto-Tuning functions help make sure you won't go out of tune. And top notch circuitry and design prevent overheating. Multiple keyboard modes allow for true flexibility for different performance / voicing needs! The Prophet 10 is a truly fat and classic analog instrument.

This synth has been fully serviced, recapped including the tantalum caps, restored and has Wine Country Sequential's MIDI added! Even the front panel nameplate is in perfect condition which is rare on these. The sequencer works as it should too, although I never really used it but I have played around with it. I do not know if the micro-cassette tape drive works, I dont have any tapes and have never tried it.
The synth will be well packed and shipped in a new custom made road case, Local pickup in San Antonio, TX can be arranged. There are no returns or refunds on this item.

Dual Manual: The Prophet-10 has two keyboards, 5-octaves each, allowing for independent performance or layering of sounds.

Bi-timbral Operation: This feature allows the user to play two different sounds (programs) simultaneously, either layered on top of each other or split across the two keyboards.

Two Prophet-5's in One: Essentially, the Prophet-10 was designed as a dual-version of the Prophet-5, offering double the voices and the ability to combine sounds in unique ways.

Voice Allocation: Each manual controls five voices of the ten-voice synthesizer. When using the bi-timbral mode, each program gets its own five voices.

Applications: This allows for creating thick, layered pads, split keyboard performances with bass on one manual and leads on the other, or any combination of sounds from the two synthesizer banks."

CLICK FOR MORE »

90s Era Moog Modular 9501, 9502, & 9505 Modules

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

9501 VCO via these eBay listings

These appear to be Don Martin Moog modules. He owned the trademark in the US for a period of time before it went back to Bob Moog. He also made a Minimoog which became known as the Donimoog. Alex Winter owned the rights to Moog in the 90s in the UK, and produced the "Welsh Minimoog".

Descriptions from the listings:

"This listing is for one Moog Modular 9501 VCO module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the quality; this module looks to be missing a couple of the socketed components and a resistor (plus a few of the switches need to be soldered). I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is."

"This listing is for one Moog Modular 9505 Reverberation Unit module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the state of the module. I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is. "

"This listing is for one Moog Modular 9502 VCA module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the state of the module. I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is."

CLICK FOR MORE »

Roland PG-300 Synthesizer Programmer w/ Original Box SN 724987

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

via this Reverb listing

"This controls the Alpha Juno 1, 2 and MKS-50 synthesizers. It offers complete control over all editable parameters in an easy to use, well designed controller. Uses a standard Midi cable."

CLICK FOR MORE »

Donner Music's Essential L1| Monophonic Analog Synthesizer Promo Video

video upload by Donner Music

"🎹 Introducing the Donner Essential L1 –Reimagining The Classic
Inspired by iconic monophonic subtractive synths, the L1 features a powerful 3340 VCO, 3109 low-pass filter, and 662 VCA, delivering incredible bass, lead, and more. Plus, experience the innovative Snap2Connect (S2C) System – connect supported devices like the KB-32M keyboard (sold separately) wirelessly with strong magnets, no cables needed. Desktop or keyboard? Swap interfaces effortlessly and elevate your sound! 🔥 "

Donner Essential L1 Sound Exploration through the ARP

video upload by Molten Music Technology

"The Donner L1 is an SH-101 inspired synth that has a nicely creative ARP that took me on a journey through the sound possibilities. It's running through the Bopp & Steve reverb for a bit of ambience."

Novation Circuit Rhythm Editor - VST and Standalone Version

video upload by mller30161

Editor Homepage: https://circuit-midi-editor.jimdo.com

"The 'Circuit Rhythm Editor' is a VST / Standalone - Controller for the Novation "Circuit Rhythm" sampler and drum machine.

Editor Features:

It is perfect to integrate the Circuit Rhythm into your DAW.

You can control and mixing the Sessions, change and create new sounds "on the fly".- It provides a simple access to all important parameters.

The Plug-In allows you to set the hardware easily and automated the controller movement from the DAW, they can be stored in your Project.- With the X-Y-Pad any controller can be selected and controlled.

You have an overview of all 8 tracks.

The parameter can be changed on the 'Circuit Rhythm Editor', and stored on Circuit Rhythm Hardware.


The Editor are available for:

PC: As VST2 and Standalone for 32bit and VST2, VST3 and Standalone for 64bit Windows.

MAC: As VST2, VST3, AU and Standalone, compatible with MAC Intel and Silicon."

AURA Plugins Waldorf Blofeld Editor

Setup and Configure video upload by AURA Plugins



via AURA Plugins

"Waldorf Blofeld Editor & Librarian is designed to control your Waldorf Blofeld right from your DAW. With our Editor, you can work with your Waldorf Blofeld by the same way you use your virtual instrument plug-ins. Our Editor will recall your patch settings when you open your project and the data will be sent to your Blofeld automatically once you open your project. Your synthesizer is always synchronized with your session! The only thing you need to worry, is that you power-up your synthesizer. We also added the ability to load in Waldorf microQ and Q patches! (WHAT? Yes!)

Faster workflow

Waldorf Blofeld Editor brings hardware integration to modern Digital Audio Workstation environments. Waldorf Blofeld Editor & Librarian plug-in works seamlessly with all Waldorf Blofeld Keyboard / Waldorf Blofeld Desktop synthesizers.

It is now much faster to scroll thru sounds and make tweaks within your DAW. Automate parameters with real hardware control names. The best part is, our Editor saves all the data within the project and when you reopen the project, all of the used data gets sent to your hardware, automatically! No more waiting with loading or transferring hardware data. Save time – welcome Total Recall.

Control Waldorf Blofeld desktop / Blofeld Keyboard synthesizer directly from your DAW.

Automate almost every parameter directly from your DAW.

No need to remember CC’s for each knobs / per synthesizer. Goodbye sticky notes!

Load, Edit and Store patches into hardware memory or in your HDD personal library.

Store any Waldorf microQ / Q / Blofeld compatible soundset in your HDD library folder and browse it from our plugin.

Send banks or individual patches from librarian to hardware.

Request banks or individual patches from hardware to librarian.

Total Recall: When you reopen your project, all of the data used in it, will be sent to the hardware, automatically!"

CLICK FOR MORE »

Korg PS-3100.... thru Boss echo & Yamaha reverb...

video upload by noddyspuncture

Elta TSC12 Touch Sensitive Controller | From Solar 42F drone ambient machine

video upload by Cinematic Laboratory

"The Elta TSC12 Touch Sensitive Controller may remind you of the SOLAR 42F Drone Ambient Machine, the multi VCO-desktop synth. Obviously, the TSC12 is only the touch panel which can control a a single voice with V/OCT and pressure, two voices with dual V/OCT, or a split cofiguration with voice and an arpeggiator or sequencer. The TSC12 supports easy note configuration for 12 keys where you can pick any note from any octave. It also supports default- and user scales. Even though the TSC12 is simple to use, it allows you to create really complex and expressive patches through human interaction, combined with sequenced or arped automation. Obviously it's great for playing live drones and ambient music, but you'll need to build your own SOLAR case layout."