midi-macros is a browser-based composition tool built on @perry-rylance/midi and @perry-rylance/midi-macros. Write TypeScript in the editor, then use the controls here to play it back.

Please see README.md for more detail on the available macros.

You may also find it useful to refer to the MIDI macros examples.

Macros

Events

Control

Meta

SysEx

Miscellaneous