MIDI.org Forum - Recent Posts

Adding C2PA to Midi 2.0 and requesting a SysEx ID

Matthew Rappard — Thu, 03 Sep 2026 19:46:37 +0000

Hello I'm a member of the (Coalition for Content Provenance and Authenticity) C2PA's Audio Working Group.

The group is actively working on including MIDI 2.0 in the C2PA specifications.

In our implementation of adding C2PA to MIDI 2.0 we would need a Manufacturer ID (SysEx ID) so we could indicate the data is a C2PA manifest and thus could be verified.

I personally was just wondering about the best way to discuss this with the MIDI 2.0 group.

I know I can pay for a membership, and many of the organization in C2PA are already corporate members, but since the Manufacture ID (SysEx ID) would have to be shared with people inside our group and outside, it might warrant a discussion.

Join and Participation in MASSIG

Billy Lackey — Wed, 02 Sep 2026 15:02:37 +0000

Hi, My name is Billy Lackey, just joined and looking to join and participate in MASSIG meetings removed link I will appreciate any information on how to join and connect with the group. Many thanks!

Re: Replace the Equal Temperament Tuning or ETT - New Tuning / New Notation System

Clemens Ladisch — Tue, 01 Sep 2026 07:45:50 +0000

Will these notes be harmonious? Have you computed how their overtones interact?

Anway, most basic MIDI synthesizers do not support changing the frequencies of specific notes. For those that implement Roland GS or Yamaha XG support, you can send a SysEx to adjust the Scale Tuning. For those few that implement the MIDI Tuning Standard, you can send a Bulk Tuning Dump. For all others, it would be possible to send Pitch Bend messages, but then you would have to use one channel per note.

What specific MIDI device are you using?

Oh no... My SNES MIDI Remaster Project downloads contain invalid GS SYSEX

Jason — Mon, 31 Aug 2026 15:56:30 +0000

Just an FYI if you have previously downloaded any of my SNES MIDI Remaster Project MIDI files, particularly any released in the past couple of years, I have just discovered that most of my GS percussion assignment SYSEX commands were written with invalid checksum bytes. Some software will ignore this, so might not cause any issues. However, I will be going back through all my files and fixing the checksums at some point, and when I do I will upload the corrected versions of each. I'll follow up here when I do.

Replace the Equal Temperament Tuning or ETT - New Tuning / New Notation System

Philippe Rousset — Mon, 31 Aug 2026 13:09:59 +0000

^{I need your help to create a new music notation program.}

^{We will use A-28 Hertz as a reference (base or aggregate).}

^{Add 28 dividers … 1 - 2 - 4 - 7 - 14 - 28 to the base and we obtain the following list}

^{28 - 29 - 30 - 32 - 35 - 42 - 56.}

^{Apply this list to the sonic band in Hertz and we have a basic scale (7 notes/ first octave)}

^{28Hz 29Hz 30Hz 32Hz 35Hz 42Hz 56Hz}

^{List the harmonics for each of the notes in the basic scale and you have the making of a new musical / instrumental tuning.}

^{This new tuning can be applied / transferred to an existing notation program’s extension providing the program will accept the new tuning and run its oscillators on it.}

^{I want to replace the Equal Temperament Tuning. with the following frequencies, for each note respectively.}

^{NOTE Frequency}

^{in Hertz}

A - 1 28 -

A# 29

B 30

C 32

C# 35

D 42

D# 56 -

E 58

F 60

F# 64

G 70

G# 84

A - 2 87

A# 90

B 96

C 105

C# 112 -

D 116

D# 120

E 126

F 128

F# 140

G 145

G# 150

A - 3 160

A# 168

B 174

C 175

C# 180

D 192

D# 196

E 203

F 210

F# 224 -

G 232

G# 240

A - 4 245

A# 252

B 256

C 261

C# 270

D 280

D# 288

E 290

F 294

F# 300

G 308

G# 315

A - 5 319

A# 320

B 330

C 336

C# 348

D 350

D# 352

E 360

F 364

F# 377

G 378

G# 384

A - 6 385

A# 390

B 392

C 406

C# 416

D 420

D# 435

E 448 -

F 450

F# 455

G 462

G# 464

A - 7 476

A# 480

B 490

C 493

C# 504

D 510

D# 512

E 522

F 525

F# 532

G 540

G# 544

A - 8 546

A# 551

B 560

C 570

C# 576

D 580

D# 588

E 595

F 600

F# 608

G 609

G# 616

A - 9 630

A# 638

B 640

C 644

C# 660

D 665

D# 667

E 672

F 690

F# 696

G 700

G# 704

A - 10 714

A# 720

B 725

C 728

C# 735

D 736

D# 750

E 754

F 756

F# 768

G 770

G# 780

A - 11 783

A# 784

B 798

C 800

C# 805

D 810

D# 812

E 832

F 840

F# 841

G 864

G# 868

A - 12 870

I asked the same thing to Chat Gpt

Thet say ok, it's new we do it

I followes the intructions, installed Python... and now I am stuck

I need me a computer person to help me and the Chat Gpt robo thingy complete the prototype.

Hello I'm new to Midi and here

MIDInovice — Sat, 29 Aug 2026 18:18:51 +0000

HI everyone,

A friend recommended this site and I am writing to both introduce myself and also probably make a total fool of myself asking some really dumb questions. As with this forum and community, I'm new to MIDI although I've had MIDI equipment for about 10 years or so already. I've just never got to using it before now, as I was doing everything on to a mixer and I plan to continue using that as the main platform for my recording. However, a while ago I started getting curious about MIDI and I connected a number of instruments together and really havent looked back. So this is what I came here to ask about, and learn more.

I would like to link a number of instruments I have via Midi to create more complex instrumentations which I want to send to a Zoom Live Track 20 mixing deck. What I want to do is create a synchronous interactive polyphonous sound configured through MIDI while also sending the individual voices of the various instruments to the Zoom 20 deck via Phone/XLR cable. In effect I want to create two kinds of networks (MIDI and conventional audio jacks) using the same instruments all of which are controlled via a central unit in the system which I will play. The sound modules I want to link up are;

1) Midi Network - Circuit One
i Mini Nova synth
ii Yamaha MOXF
iii Korg Volca Drum
iv Behringer RD9
v Beat Buddy 2
vi Line6 Guitar Helix
Circuit One : Connect MIDI Network To Zoom L20 via a final connection through 6.3mm jack or XLR.

Circuit Two : The individual voices of the seperate instruments connected via XLR/right channel phone to the Zoom L20.
i Mini Nova
ii Yamaha MOXF
iii Volca Drum
iv Behringer RD9
v Beat Buddy 2
vi Guitar via Line 6

The idea is to get two different sounds from each instrument;

a) the sound produced via the MIDI induced configuration, and

b) the sound that comes out of the instrument without the MIDI induced sound.

I want to record both these sound sources on the Zoom Livetrack 20 and get a 'band' feel to the music rather than dubbing different tracks and building the sound progressively with each dub. I also still like the "analogic" experience of creating the music mechanically through the way I play the instruments rather than just programming stuff straight into a DAW or something like that. My feeling is I will probably use the Yamaha MOXF as the central controller of the MIDI network to get the chords and tones and instrument changes into the network, alhtough I may end up using a clock to master the timing of all the instruments together.

2) Three Questions about MIDI Hardware

A) What is the best way to get a synchronous MIDI network of this nature to work? My research into MIDI suggests that long daisy-chains is not a good idea.

B) What would be the best way to set up this synchronous MIDI network? A MIDI clock(+MIDI through hub/s) or just MIDI hub/s and use the controller (say MOXF) to set the timing? Would that for sure stop any unexpected timing deviations from the other sound modules?

C) Is it possible to use the MIDI controller (MOXF or a dedicated MIDI controller) to specify what each instrument would do, for example if I want the MiniNova to create bass lines, the MOXF itself to create a symphonic sound of strings as well as other voices such as bells, and the Korg Volca to create a range of tonal rythms, while the Beat Buddy creates a basic drum kit beat while the RD9 creates more complex overlays of beats and rythms (perhaps in different time signatures). Or would it be simpler/better to just programme each of these sound modules individually to produce the sounds I would like them to?

I would appreciate any product recommendations to create this network as well.

Sorry for the long post - I hope someone will find time to look at it.

Thanks, regards and greetings

John

RE: Middle C (note 60) Pitch Assignment?

Jim Fogle — Wed, 26 Aug 2026 00:20:18 +0000

While it is well known (by many musicians that frequently use midi) that middle C has no octave assignment the same may not be true for beginners.

Perhaps with Midi 2 renewing interest in midi now is a good time to revisit the question.

RE: MIDI Manager - collection organizer for .mid, .midi and .kar files

MusicNoteHaven — Mon, 24 Aug 2026 08:41:33 +0000

Hello everyone,

An update to the MIDI Manager project I posted about previously: MusicNote Haven MIDI Manager 1.1 is now available.

Version 1.1 represents a substantial step forward, particularly in the analysis, review and large-library workflow.

Among the changes:
• redesigned professional desktop interface
• Source Index and Deep MIDI Analysis improvements
• explicit Search with detailed per-file evidence
• instruments, controllers, SysEx and GM/GS/XG-related information
• human Review for uncertain recognition and organization decisions
• preview-first, copy-first organization
• scalable Organized Library browsing
• MIDI playback and playback queues
• FAT12 / Gotek-oriented Floppy Image Studio
• Library Health, database maintenance and recovery workflows

MIDI Manager remains local-first. MIDI/KAR files are not uploaded to a cloud service; the archive and analysis database remain on the user’s own computer, NAS or storage.

One of the main development collections contains 193,195 MIDI/KAR files. Working with that collection continues to drive improvements in indexing, search, incremental browsing and database maintenance.

I’ve published a new walkthrough of the current 1.1 application:
https://youtu.be/5w1RfQlsUuY

Updated downloads, documentation and release notes:
https://musicnotehaven.ethercomm.eu/

Windows is available through the Microsoft Store, with a verified Linux package also available.

For those working with large or older MIDI collections, I’d still be very interested in hearing which metadata or analysis results you find most valuable when identifying an unfamiliar MIDI file.

Thanks,

MusicNote Haven

RE: Got Property Exchange working between two vendors' gear that never coordinated — sharing it, and some open questions on adoption

Saulo Verissimo — Wed, 19 Aug 2026 21:47:36 +0000

Hi Nick,

On question 3, a trap that cost me some time and might be useful: the MUID being generated before the RNG is seeded. On the RP2350 I had a fixed MUID on every boot, and nothing breaks until there are two identical devices on the same bus, then both declare the same MUID and the session becomes ambiguous. It only showed up when I went to check the MUID on the wire rather than in the log.

On your offer of an open reference: there's interest on this end. I work from the opposite side to yours, with the responder running inside the device, on the MCU, not on the host. I've run that successfully against the MIDI 2.0 Workbench on several MCU families.

;)

RE: What is the common practice of handling a virtual UMP device when a legacy Midi host connected into it?

Andrew Mee — Tue, 18 Aug 2026 05:23:43 +0000

Excellent glad it all came together :)