MIDI Editing that Doesn't Suck

Vimposer makes writing music as easy as typing. No more clicking around - edit notes instantly with keyboard shortcuts. Don't like the built-in shortcuts? That's ok. Change literally all of them with Vimposer's Python API, and create new keybinds to perform any edit you can think of.

It's Vim, But for Music!

No long loading times: Vimposer runs directly from the terminal, and starts up in a fifth of a second. We've cut out all the unnecessary bits, so you can focus on what really matters: MIDI. Just MIDI. Vimposer creates .mid files that can be listened to on their own, converted to audio files, or imported into any DAW for further processing.

Everything You Need to Create

Choose from 127 included instruments, or download your own Soundfont files for thousands more! Vimposer has everything you need for streamlined, efficient MIDI-first composition.