Your musicMIDI and notes
Edit MIDI
Draw and edit notes in the piano roll, pick the sound they play on, and download them as a MIDI file.
Pick a sound
Press the sound name next to any MIDI player and type to search:
- Built in: Piano, Dance piano, Deep piano, Electric piano, Guitar, Muted guitar, Synth, Pad and Organ. They play at once, even offline.
- Your samplers: instruments made from your own samples. See Make a sampler.
The sound you pick sticks for every MIDI player on Aden.
Edit notes
- Press play or Space to play from the playhead. Click the ruler to move it.
- Draw notes in the piano roll, drag them, stretch them, delete them. Each note sounds as you add it.
- Pinch or Ctrl/⌘ and scroll to zoom; scroll sideways to move along.
- Drag the ends of a scrollbar to resize: the bottom one stretches time, the one beside the keys makes notes taller or slimmer. Alt/⌥ and scroll does the same for the keys.
- Drop a MIDI file on the editor to open it. The eraser clears every note, with Undo.
Pick your DAW next to the sound to use its shortcuts. Some that work everywhere:
| Do this | Shortcut |
|---|---|
| Pick notes | Ctrl/⌘ click, or Shift click to add |
| Pick all, pick none | Ctrl/⌘+A, Esc |
| Up or down a semitone | ↑ ↓ (with Shift, an octave) |
| Earlier or later | ← → by a sixteenth (with Shift, a bar) |
| Copy, cut, paste | Ctrl/⌘+C, X, V |
| Undo, redo | Ctrl/⌘+Z, Ctrl/⌘+Shift+Z |
The free MIDI editor
tools.aden.space/midi is the editor on its own, free and without an account. It's also "MIDI editor" in ⌘K.
- Chords: type a progression like "Am7 Fmaj7 C/E G" and press Write.
- BPM: change the tempo and the notes follow.
- Download the file, or drag the download button onto a track in your DAW.
- Copy link: the notes live in the link, up to 400 of them.
- Recent keeps the sketches you left, in your browser only.
In ChatGPT, Claude and other AI apps, add the Aden MIDI editor and ask for chords or a melody. You get the file, a link, and the editor right in the chat.
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