MIDI OCTAVIUS - A MIDI Transpose module for synthesizers and other devices

video upload by MIDERA

"Hello! I have developed my own MIDI transpose module.

What does it do?
It takes the MIDI note date in from your respective synthesizer to your sequencer (or even back into the synthesizer to play back the note data) and transposes the note data up to two octaves up or down. You can select your own MIDI Channel by long-pressing a different MIDI input channel.

Why did I make this?
I became frustrated that a company wouldn't implement a MIDI transpose mechanism for their synthesizer, thought they'd add all sorts of other features. This has been in development since January of 2026, or something like that.

Who is this for?
Anyone who has a synthesizer that they want as their master controller, but it doesn't have MIDI transposition buttons.

Are you interested in this? Want to help me make an enclosure so it's nicer? Check out my webzone and send me an email there and we can chat. Webzone: https://www.midera-artist.com/"

KORG Introduces NTS-4 Compact Performance Mixer Kit for Hardware Setups

Overview video upload by KORG

"The NTS-4 is a compact performance mixer kit designed for modern hardware setups. With six channels (two mono and four stereo), built-in effects, USB-C connectivity, and support for up to 10 audio signals, the NTS-4 makes it easy to bring together volca units, NTS instruments, modular gear, grooveboxes, and desktop synths into one streamlined setup.

In this overview, Fess Grandiose walks through the NTS-4’s flexible channel architecture, Eurorack-compatible mono inputs, dual stereo effects engines, per-channel CUE and MUTE controls, USB-C audio and MIDI connectivity, and the hands-on Nu:Tekt DIY assembly experience.

Features:
• Compact 6-channel performance mixer
• 2 mono + 4 stereo 3.5 mm channels
• Supports up to 10 audio signals
• Eurorack-compatible mono inputs
• Standard 1/4" main outputs
• Per-channel CUE, MUTE, and FX send
• Dual stereo effects engines
• SEND FX + TOTAL FX processing
• Stereo send/return loop
• USB-C audio + MIDI
• Record directly to computers & mobile devices
• Rugged steel chassis
• Nu:Tekt DIY kit assembly

Learn more about the NTS-4: https://bit.ly/4w0QxLQ"

And a user video from supporting member Knobs & Switches:

KORG NTS-4 Performance Mixer Kit
video upload by Knobs & Switches

"Here is my review about the new Korg NTS-4 Performance Mixer Kit together with loads of other Korg gear: MS20m, Drumlogue, SQ-1, 700Sm, Harmonic Distortion, Opsix, Sigma, Minipops-7, ISE-NIN Single Voice, Ryk M185 Sequencer and of course the NTS-4. The Nu:Tekt Mixer will be released today! Have fun

https://www.korg.com/de/

For Pedal Power i used the MyVolts CrazyChain MkII: https://myvolts.com/CrazyChainMKII/?a...

The fancy Audio Cables are the MyVolts Candycords: https://myvolts.com/CandyCords/?a=kas

CV and Clock Cables are MyVolts Halos: https://myvolts.de/Halo/?a=kas

00:00:00 Intro
00:00:037 Title Track (only the NTS-4’s FX were used)
00:03:04 Epilogue
00:04:41 NTS-4 Run Down
00:08:58 NTS-4 Send FX
00:14:56 NTS-4 Send/Return
00:15:58 NTS-4 Total FX
00:21:19 Conclusion
00:22:47 Outro (only the NTS-4’s FX were used)

Used Equipment: Apple iPhone 14 Pro Max, Apple iPhone 12, Sony ZV-1, Rode Wireless ME, Universal Audio Apollo Twin Solo, Yamaha MG-06, Steinberg Cubase 15 and Final Cut Pro X"



A compact performance mixer for modern hardware setups

Build the perfect bridge for your music. The NTS-4 brings the flexibility of the Nu:Tekt series to a compact performance mixer kit designed for today’s hardware setups. With six channels (two mono and four stereo minijacks), built-in effects, and USB connectivity, the NTS-4 makes it easy to mix and perform with volca units, NTS instruments, modular gear, and other desktop synths in one place, supporting up to 10 audio signals in a single setup.

From the integrated effects to the steel chassis, every part of the NTS-4 is designed to turn your collection of instruments and gadgets into a professional-grade creative hub.

Small Footprint. Massive Control.

CLICK FOR MORE »

Klik - Pushbutton Matrix for the Bastl Kastle Synthesizers

video upload by Sid Rockett

"💡Discover the Klik module. Add a playable 4x4 button matrix to your Kastle or Volca synth for ultimate hands-on control and experimental patching.

⏱️ Chapters:
0:08 – Intro
0:20 – Controls
0:40– Sound demo with Kastle 2 Wave Bard

🗒️ How does it work?

There are 8 patch points connected to 4 rows (ABCD) and 4 columns (1234) of buttons. Pressing button A1 connects point A to point 1. A2 connects A to 2. B2 connects B to 2 and so on.
It is best used by dedicating rows to outputs and columns to inputs. In this configuration every possible combination of buttons will connect outputs to inputs and cause a change in the behaviour of the synthesizer.

Based on the Synapsis by Bastl Instruments ! (...hope the guys are ok with it).

✌️ I’m Sid Rockett, a designer and explorer of experimental synthesizers and custom noise-machines.

From boutique pocket synths to DIY Eurorack builds, this channel is dedicated to pushing the boundaries of compact hardware. Join me as we navigate through industrial soundscapes, deep cinematic reverbs, and the infinite feedback of outer-space delays.
🎛️ You can buy my synths here:
https://sidrockett.bandcamp.com
https://www.tindie.com/stores/sid_roc..."

A Matrix Mixer made of Pure Gold! // Goldfinger by Music Thing Modular

video upload by DivKid

"Here's GOLDFINGER, the literal pure gold, finger wiggling, signal routing & mixing matrix mixer from Music Thing Modular. It has 6 bidirectional connections (so ins and outs as you choose), its passive and routes and mixes signals depends on what parts of the surface you touch."

*TIMING INDEX // CHAPTERS*
00:00 Hello & previews
00:49 What is Goldfinger?
02:09 3 in 3 out West Coast Workshop System
05:28 Eurorack techno touched based FX sends
08:17 Exploring abstract filter pings and textures
11:02 Routing pulses, rhythms & clocks across ambient modular patches
13:53 Feeling my way through 4 voice chord intervals

"Goldfinger is a desktop matrix mixer. It’s made of gold. You play it with your fingers. It comes pre-assembled with no DIY required."

Introducing the Quantum Midi Sequencer

video upload by Giorgio Sancristoforo

"Soon available for free at giorgiosancristoforo.net"

ST Modular - DII·ONE → USB Interface and MIDI Controller with CV Clock

video upload by ST Modular (Stefan)

"DII·ONE is a compact MIDI controller and routing hub designed for modern hybrid music setups. It combines USB MIDI, hardware MIDI, and a CV clock output in a single device, allowing all functions to operate simultaneously without compromises.

For more information please visit st-modular.de!

00:00 Functions & Features
01:17 Midi Learn with Elektron Model:Samples
04:35 Controlling Torso S-4
05:36 Ableton Live Setup and Control
07:06 Controlling Waldorf Iridium with a single USB cable
07:47 DII ONE Configurator"

key features
Compact USB MIDI controller with hardware MIDI I/O and CV clock output
4 programmable buttons (CC or Note, momentary or latching)
4 programmable knobs (assignable to any MIDI CC)
USB MIDI to and from computer
TRS MIDI In and Out (5-pin DIN compatible via adapter cable Type-A)
CV Clock output for modular synthesizers (0–5 V)
Hardware-based MIDI Learn
Clock division directly from the device
All functions usable at the same time

You can find addtional details at ST Modular.

The MONK Project Hardware Sequencer - Updates - GearExpo UK 2026

video upload by sonicstate

"Great to catch up with Nick Monk who was showing the Monk Project again after its success at the London Synth & Pedal Expo.What sets this sequencer apart is its combination of 16 customizable channels and a unique theory engine. While it features traditional step sequencing it also incorporates a wide range of generative models using its music theory engine to ensure musical coherence. This allows you to control melody outputs, toggle randomness, or block non-conforming notes.

The sequencer includes a phraser using Markov chains for recording and manipulating musical phrases and a new feature Nick calls HI (Human Intelligence). HI enables the machine to learn and create statistical tables based on your playing style. Nick elaborated that these features are on top of its basic step-sequencing capability.

Aimed for niche and professional composers, prospective uses span from simple MIDI creations to algorithmic music generation. The sequencer is aimed for production with pre-orders starting after summer, requiring a minimum of 20 orders to initiate a prototype run. CV and gate connectivity is also planned and in the works."

https://themonkproject.com

Introduction to the Smol Sequencer

video upload by stretta

http://stretta.com/labs/smol/

PhenoType - Generate Synplant Patches from Text

video upload by Sonic Charge

Surprisingly no mention of AI.

"PhenoType is a free script for Synplant 2 that lets you generate synth patches from text descriptions.

Type the description of a sound, texture, or instrument, click EXE, and PhenoType will attempt to create a matching patch locally on your machine. Click EXE again for another interpretation, use the result as a starting point for further editing and evolution, or click RND and see where things go.

PhenoType runs entirely locally inside Synplant 2. No cloud processing and no internet connection required.

Free download:

https://soniccharge.com/phenotype

Requires Synplant 2:

https://soniccharge.com/synplant

(All sounds in this video, including the mouse clicks and keyboard sounds, were created using Synplant 2.)"

Ableton Datashifter Max for Live Device

video upload by Akihiko Matsumoto

https://akihikomatsumoto.sellfy.store...

"Most glitch processors treat rhythm as something to destroy. Datashifter takes a more controlled approach. It breaks the surface of percussion while preserving the force underneath.

Designed as an Ableton Max for Live device, Datashifter captures short fragments of incoming stereo audio into an internal memory system, then reads those fragments back through multiple voices. These voices can stutter, reverse, jump to earlier moments, or shift playback speed in octave based steps.

The result is not a simple repeat effect. It feels closer to a live editing system for drum time. The groove continues to move forward, while small pieces of its memory are rearranged, folded, interrupted, and returned to the beat.

A Beat Is Not Just a Grid

CLICK FOR MORE »

Mangrove Rhythm - Buchla music easel, easel command, 208C, card

video upload by Roland Klinkenberg

"Patch breakdown:
208c env generator - Gate 2
Card envelope out - Gate 1
Card sequencer out - Card env generator level
208c random voltage 1 - 208c env generator attack input
208c random voltage 2 - 208c env generator decay input
208c sequencer out - Gate 2 source switch, switching between MOD osc and noise
208c random voltage 3 - Complex osc timbre amount
Card LFO out - MOD Osc frequency
MOD osc fm - Coplex osc

MAil me at rklinkenberg@gmail.com for more info on the card"

DROPKEYS TMP For ASM Diosynth

video upload by TJontheRoad

"Introducing DROPKEYS TMP for the ASM Diosynth. EVI trumpet keyset for trumpet fingerings. DROPKEYS are a drop in replacement key set for the Diosynth. 15 minutes is all you need for a quick simple installation..

Learn more here: https://lyingawakecreations.com/dropkeys"

"Trumpet Fingerings To The Next Level"

Missing Link - What Is Link?

video upload by Circuit Happy

"What exactly is Link? What can it do? Where did it come from and how will it help me?
Link is a wireless sync protocol that keeps music apps and devices in time — all the time.

No master clock.
No complex routing.
No drift corrections every 5 minutes.

Open an app with Link enabled and it syncs up effortlessly. Tempo changes update everywhere. Start playing, stop playing — everything locks.

Simple. Elegant. Powerful.

👉 See how Missing Link brings Link to your setup over at our website https://www.circuithappy.com"

Syncing with hardware and Eurorack to the DAW using the Circuit Happy Missing Link ML:2m

video upload by ALX-106

"NEW Firmware: Introducing ‘Rhythm Explorer’ available now for ML:2m and Missing Link Junior!

Rhythm explorer mode allows you to disrupt your clocks with some maths and chaos, providing new rhythms into your music instantly. Instead of a regular steady clock, turn on Rhythm Explorer mode to introduce looping patterns as your clock with the ability to choose the number of Steps, Pulses and introduce Chance and Jitter! How about using a Euclidean rhythm as your clock pattern!? Well, you can and the results are super fun and can provide some exciting results.

Simply head over to the web interface and update your device now. Check out the documentation for details.

Circuit Happy products now available in select shops around the world."

Check with dealers on the right for pricing and availability.

Pics and details of the Missing Link Junior via Perfect Circuit.

"Updated from its larger predecessor, Circuit Happy's Missing Link, Junior is both more powerful and more compact, affording you better synchronizaion of your hardware and software electronic music tools. Central to its operation is the ability to utilize Ableton Link, allowing it to sync with your DAW and other Link-compatible devices via Wi-Fi. Missing Link, Junior can connect both to existing networks or create a Wi-Fi Access Point for other devices to use when a network isn't present. As a bonus, it also outputs MIDI clock over USB and can be used to keep your MIDI gear in sync with the TRS Type-A output. With two configurable outputs A and B, you can setup the Missing Link, Junior to serve a variety of purposes: analog clocks at different division settings, Din Sync-style Run/Stop gates, and more. Simply put, the Missing Link, Junior is your be all, end all compact clocking solution.

The Missing Link, Junior Features

Desktop clock and sync generator
Ableton Link compatible
Configurable outputs A and B serve a variety of purposes
Type A MIDI TRS output
USB-C connectivity
Compatible with modular synths, DIN-Sync gear, MIDI instruments, DAWs, and more
Wi-Fi access point when no networks are available
Product Details

Dimensions: 83 mm x 83 mm x 21 mm
Power: USB-C (power supply and cable included)"

#m5stack Acid Generator Box Prototype Jam with Circuit Tracks

video upload by space fever

"自作の Acid Generator Box の試作機を使ったテストジャムです。
M5Stack FIREとMIDI Unitを使って、MIDIフレーズを生成するガジェットとして制作しています。

This is a prototype jam using my DIY Acid Generator Box built with M5Stack FIRE and a MIDI Unit. The Acid Generator Box generates acid-style MIDI phrases and is used together with Novation Circuit Tracks.

Gear used:

Acid Generator Box prototype
M5Stack FIRE
M5Stack MIDI Unit
Novation Circuit Tracks
MAM MB33"

Minimal acid test with DIY Acid Generator Box and MB-33.

video upload by space fever

"自作の Acid Generator Box の試作機を使ったテストジャムです。
M5Stack FIREとMIDI Unitを使って、MIDIフレーズを生成するガジェットとして制作しています。

This is a prototype jam using my DIY Acid Generator Box built with M5Stack FIRE and a MIDI Unit.
The Acid Generator Box generates acid-style MIDI phrases and is used together with MB-33

Gear used:

Acid Generator Box prototype
M5Stack FIRE
M5Stack MIDI Unit
MB-33"

CLICK FOR MORE »

Meet Meow Seq

video upload by Floof Audio

"Meet Meow Seq, a VST3 sequencer inspired by modular setups.
Download the free trial from floofaudio.com

Full version is 25% off for the first two weeks (until June 15).

Meow Seq is a sequencer, a MIDI phrase writer, and a creative kick in the pants to your everyday piano-roll-oriented life.

At its core, two machines work together to generate a single MIDI output. The top machine controls timing, when notes happen and for how long. The bottom machine controls pitch, which notes play and how. Both machine contains five sequencers, all running independently with their own step lengths and play modes. Mix and match freely to build patterns that evolve and surprise, then route the output to any hardware or software synth you like.

The inspiration comes from Eurorack-style sequencing, where multiple sequencers interact to control time, pitch, and modulation in complex and sometimes chaotic ways."

Kenton Electronics interview Superbooth 26

video upload by Take the Fear out the Gear

"Hi everybody this time we bring you the kenton electronics interview at Superbooth 26. Website https://kentonuk.com/

Coming Soon – Kenton Interchanger

The Interchanger is a very flexible, programmable MIDI patch bay – something many of our users have been asking us to make for a long time! Its feature set makes it just as useful on stage as it is in the studio, while retaining the ease of use that our products are known for; not to mention build quality and reliability you can depend on.

12x DIN MIDI inputs and outputs – 8 pairs of IN/OUT on the back, plus 4 pairs of IN/OUT on the front.

1 x 3.5mm TRS MIDI input and 4x 3.5mm TRS MIDI Outputs.

CLICK FOR MORE »

Introducing Wavetable Designer by Lambda Synthetics

video upload by Lambda Synthetics

Lamda Synthetics also makes the PolyPulse Algorithmic Performance Workstation.

"A short introduction and demo of the new Lambda Synthetics Wavetable Designer! Try it out yourself at https://wavetabl.es/"

16 Music Lab Custom MIDI Interfaces for Yamaha CS Series

via 16 Music Lab:

Hello MatrixSynth readers,

I am Thierry Gerardeaux from 16 Music Lab, and I want to announce that my custom MIDI interfaces for the Yamaha CS series (covering everything from the CS-15 up to the legendary CS-80) are currently available.

To maintain the highest standard of quality and ensure these kits end up in the right hands (rather than with speculators), I operate strictly on a small-batch, built-to-order basis. I limit production to a maximum of 5 units per CS model at any given time. This is true boutique hardware designed for purists and demanding technicians.

The CS-80 Flagship Interface & MIDI OUT Capabilities

While I proudly cater to the entire CS line, I want to specifically highlight the interface designed for the Yamaha CS-80. Given the immense complexity and uncompromising architecture of this legendary synthesizer, retrofitting it requires absolute precision.

Crucially, this specific MIDI kit goes beyond basic connectivity by featuring a comprehensive and highly responsive MIDI OUT. It flawlessly transmits all 8 voices of polyphony, including velocity and the CS-80's signature polyphonic aftertouch, alongside real-time data from the iconic ribbon controller. This allows you to harness the CS-80's legendary expressive keyboard to control your modern DAW or other hardware seamlessly.

How it works:

Technical Validation: Before any transaction, I require a few macro photos of your synthesizer’s internals (connectors, board revisions). I personally evaluate these remotely to guarantee 100% compatibility with your specific machine.

Shipping / DIY Install: If you or your trusted local tech are handling the installation, a dedicated and highly trusted partner of mine takes care of the ultra-secure packing and worldwide shipping.

Custom Installation: For those who want absolute peace of mind, I also offer a complete, personalized installation service myself (for an additional fee).

These kits are built with uncompromising attention to detail to respect the original circuitry of these vintage masterpieces.

If you are looking to bring your Yamaha CS into the modern studio environment with a reliable, high-end MIDI retrofit, please feel free to reach out to me directly at: 16musiclab@gmail.com or visit www.16musiclab.fr

Musically,

Thierry Gerardeaux 16 Music Lab

New MIDI Brain for Dawless and DAWs

video upload by Pete Midi

"CME H12 MIDI Pro is a new USB Host MIDI interface with interesting features for dawless setups. I guess this new hub will replace my good old iConnectivity mio10😉 Basic hub example: Keith McMillen K-Board connected to H12 via USB-C, Korg Volca FM connected to H12 via TRS/DIN-MIDI"

Vorimo Engineering is just starting out - Superbooth 2026

video upload by True Cuckoo