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The MIDI Editor and AI Songs

Draw and edit MIDI on a piano roll, use several instruments, write a song with AI and enhance an existing one.

Opening the editor

The MIDI Editor section in the Sound, MIDI & Audio Hub has three buttons.

ButtonWhat it doesPlan
Write a song with AIOpens the editor on a blank page with the AI Song panel open.Creator and up
New MIDIOpens an empty piano roll at your last tempo (120 BPM the first time).Same as the Hub
Edit ActiveOpens the active track for editing. Greyed out unless the active track is a MIDI. The line below shows "Editing <name> · N notes".Same as the Hub

Toolbar

The toolbar along the top of the editor.

ControlWhat it doesRange / options
Play / StopPlays the piano roll. Click the ruler to start from a point.Space bar
BPMTempo of the whole piece. Files with tempo changes are flattened to one tempo (you see "Tempo flattened").20 to 400, default 120
Draw / SelectDraw: click and drag to add notes. Select: pick notes to move, resize or delete.Two tools
SnapGrid for placing notes.1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/8T, 1/16T
Zoom out / Zoom inZooms the timeline.Buttons
Undo / Redo / DeleteEdit history and deleting selected notes.Buttons
Export .midDownloads the piece as a standard MIDI file.Button
Save & ApplySaves to your library and makes it the active track. Editing a track you do not own saves your own copy and leaves the original untouched.Button

Technical parameters

  • Right-click a note to delete it.
  • Shortcuts: Ctrl+Z undo, Ctrl+Shift+Z or Ctrl+Y redo, Ctrl+C copy, Ctrl+X cut, Ctrl+V paste, Ctrl+D duplicate, Ctrl+A select all, Delete or Backspace delete, Space play, Escape close (closes an open AI panel first). On a Mac use Cmd.
  • A velocity lane under the roll sets how hard each note is played.

Tracks and instruments

The Tracks panel lists each part with its colour and note count. Add track creates a new one; the bin removes one (you always keep at least one). Click a name to rename it.

Per-track controlWhat it does
InstrumentOver 130 instruments: pianos, organs, guitars, basses, strings, choirs, brass, reeds, pipes, synth leads and pads, sound effects, world instruments, percussion, and a Drum Kit.
MuteSilences the track while you edit.
SoloPlays only this track (and other soloed tracks).

AI Song (Creator and up)

The AI Song button in the editor opens a panel that writes a complete original instrumental song straight onto the piano roll. If there are notes already, you are asked first, and Ctrl+Z brings them back.

After a song is written, the panel shows its key, tempo, time signature, length, sections and instruments. Reshuffle arrangement keeps the same song but gives it a new performance, and it does not count toward your limits. The panel shows how many songs you have left today and this month.

ControlWhat it does
StyleThe genre to write in.
MoodHappy, melancholy, dreamy, tense, triumphant, playful, nostalgic, mysterious, calm, aggressive, romantic or eerie.
ArrangementHow many parts and how busy the backing is.
Describe it (optional)A short note, for example "slow and hopeful, builds to a big finish".
GenerateWrites the song.
Dice buttonIgnores the settings above and writes something at random.

Enhance (Pro)

Enhance improves the song on the piano roll while keeping its tune. It needs some notes first. Press Suggest improvements (optionally with a request in Ask for something specific, such as "make the drop hit harder, add a bass, jazzier chords"). The panel lists ideas marked Reimagine or Layer; tap one to apply it. Ctrl+Z undoes it and Revert to original goes back to where you started. The panel shows how many edits you have left today and this month.

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