MIDI Software - MIDI.org Forum

Keyboard matrix scan

Christoph — Fri, 27 Mar 2026 14:17:39 +0000

Is there a general keyboard matrix scan program available somewhere that can be taken as a foundation for further development.
Some kind of foundation to build upon?

Taking debouncing aside and velocity, a diode matrix scan of 4 rows by 8 columns requires some logic to maintain the pressed notes, that is, once the key event occurs, the note got to be played. Some bookkeeping has to be made, reflecting the fact that it has to be remembered that it had been played. As soon as it disappears from the scan balance, it got to be muted and taken out of the momentarily active notes. etc. etc.

Is this bookkeeping algorithm available somewhere? I'm aware, that reflecting velocity adds some level of complexity.

Note off - two different ways?

Christoph — Fri, 13 Feb 2026 10:19:21 +0000

I'm observing two different ways to shut off a note:

One manufacturer sends

90    22    7F    1  Bb 1 Note On
80    22    40    1  Bb 1 Note Off

Another one (FATAR 49 keyboard) sends:

90    2B    72    1  G  2 Note On               
90    2B    00    1  G  2 Note Off

What can be said in favor of the one or the other method?

Roland Virtual Sound Canvas / VSC

Graham Dean — Fri, 13 Feb 2026 07:39:49 +0000

Seeking full Roland Virtual Sound Canvas 3.2 installer for legacy MIDI work

Hello everyone. I’ve been using Band-in-a-Box since the DOS era and I’m trying to restore the *standalone* Roland Virtual Sound Canvas 3.2 on a modern system.

My BIAB MegaPak discs only include the DXi Lite version, which doesn’t contain the core engine files (VscSys.dll, VscCtrl.dll, etc.).

I’m hoping someone in the community still has the **full retail VSC 3.2 installer** or a complete installed folder from an older Windows system.

This is for personal use with long-term GM/GS projects. Any help or pointers would be greatly appreciated.

Controlling windows apps with midi

Jamie Crowther — Sun, 01 Feb 2026 08:59:51 +0000

I’m looking for a small number of Windows users to participate in a private beta of MIDI Command Studio — a desktop utility that turns MIDI controllers into configurable control surfaces for Windows applications.

If you’re interested, message me and Download here

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com.gsequencer.GSequencer beta

Joël — Tue, 27 Jan 2026 18:54:20 +0000

Hi,

I am looking for testers for com.gsequencer.GSequencer versatile audio and MIDI sequencer.

removed link " target="_blank" rel="noopener">com.gsequencer.GSequencer TestFlight on macOS

It allows you to play, capture and create music. There is a piano roll, automation, wave form and tempo editor. Add your MIDI keyboard in preferences and connect it to a synthesizer. Optionally map synthesizer controls to MIDI control change messages. Click play.

Note in synthesizer's context menu "properties" you might want to change format from "single precision float" to "signed 16 bit integer" in order to achieve better real-time behavior.

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regards, Joël

DryWetMIDI 8.0.3 / Swiss knife for everything MIDI related

Max Dobroselsky — Tue, 16 Dec 2025 20:17:43 +0000

DryWetMIDI 8.0.3 has been released! Please follow the links below to get information about the release:

Thanks for using the library and making it better!

a must-have web app : MIDI interface design tool

emmanuel — Tue, 02 Dec 2025 09:19:33 +0000

Hello,
If you build DIY synths and MIDI gears, you certainly use various apps to send MIDI messages to test your projects.
A few months ago, I asked my nephew to design a web-based application to create custom midi interface. He ended with a super user-friendly app with which you can organise a complete MIDI controllers set in a few clicks !

Here are some of the features :
- a nice collection of MIDI components : slider, knob, buttons, drop down list, labels.
- customise MIDI components : controller number, input and output range, offset, name, color, size
- magnetic canevas to align nicely the components
- save and recall (.json files)
- bank of pre-made layouts
- "edit" and "run" mode

There are a lot of benefits of using a web-based app : no third-party software, no coding, you can share your interface, cross-platform...
It needs more development, but I think it is a really nice job that deserves a thumb up (my nephew is only 19). If you use this tool for your personal projects, consider the buy-him-a-coffee button ! And of course feedback will be very appreciated.

Here is the link :
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Emmanuel

Best Tools for Managing and Editing MIDI Files?

jhon will — Tue, 02 Dec 2025 07:20:31 +0000

Hi everyone,
I’ve been experimenting with different tools for creating, editing, and optimizing MIDI files, but I feel like I’m still missing some good options. I’m looking for reliable software that’s easy to use and works well for both simple edits and more advanced track management.

I recently came across this resource which shares helpful guides and tools related to music and digital workflows:
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If anyone has suggestions for lightweight MIDI editors, recommended workflows, or software you personally use, please share. It would be great to know what the community prefers.

Thanks!

Piano MP3 to MIDI

Robert Jackson — Tue, 12 Aug 2025 21:46:49 +0000

I have a piano MP3 that I want to convert to MIDI. Is there software to make that conversion with super high accuracy?

DryWetMIDI 8.0.2 / Swiss knife for everything MIDI related

Max Dobroselsky — Thu, 31 Jul 2025 15:32:22 +0000

DryWetMIDI 8.0.2 has been released! Please follow the links below to get information about the release:

Thanks for using the library and making it better!