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MidiEditor

Edit MIDI files to other scales, modes and harmonies to obtain new sonorities (more than 70 scales / modes included). Follow only these few steps:

  • Open a MIDI file,
  • Choose the note(s) to change or
  • Choose the original tonic and scale (for instance C Major),
  • Choose the new destination tonic and scale (for instance C Natural Minor),
  • Click on Save as to export the new MIDI file or Save all to export to multiple MIDI files with all scales with corresponding number of notes,
  • Listen to what happens...

Inversion scale depends on note's octave, therefore it is recommended to invert given the suitable reference octave note.

Works with GUI and command line:

MIDIEditor <file.mid> --src-tonic <noteSrc> --src-scale <scaleIdSrc>
                      --dst-tonic <noteDst> --dst-scale <scaleIdDst>

Command line options:

  • --src-tonic <noteSrc> : Sets the original tonic to specified note,
  • --src-scale <scaleIdSrc> : Sets the original tonic to specified scale,
  • --dst-tonic <noteDst> : Sets the destination tonic to specified note,
  • --dst-scale <scaleIdDst> : Sets the destination tonic to specified scale and save new file (with automatic naming).

<noteSrc> and <noteDst> are designated by international notation: A, A#, B, C, C#, D... <scaleIdSrc> and <scaleIdDst> are designated by scales identifiers, listed in attached MidiEditor/Scales.txt file.

If <scaleIdDst> is set to all, the file will be exported to multiple files with all scales with corresponding number of notes.

Example usage:

MidiEditor.exe "..\samples\Bach - Prelude in C Major.mid" --src-tonic C --src-scale 7major_nat,1
                                                          --dst-tonic C --dst-scale all

Have fun!

MidiSlicer and Midi library

Midi is a small library providing a full featured, easy to use managed wrapper over Microsoft Windows' MIDI API, as well as providing for reading, writing and manipulating MIDI files and in-memory MIDI sequences. It is smaller than other libraries like Wet Dry MIDI and lower level in many ways.

I do some MIDI sequencing and recording and I found it helpful to be able to splice sections out of a MIDI file, but I didn't have a tool that made it easy to do. In the process of creating such a tool, I made a Midi assembly that contained the core MIDI file manipulation options. I also wrote some remedial playback code at first, which used the 32-bit Windows MIDI API.

That library grew as I added more features and shored up what I had. I added some more demos, streaming support, MIDI input support, device enumeration and more. Eventually, I had wrapped maybe 90-95% of the API, and had a battery of MIDI manipulation functions for searching and modifying in memory sequences and files.

In the process, MidiSlicer moved from a first class application to just another demo project, so the solution is still named MidiSlicer - I'm stuck with the GitHub of that name. The core library project is named Midi.

I wrote a comprehensive article at codeproject on using this library, and I recommend using it. The latest version of the code is always here at GitHub.