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/"