Capture melodies, chords, riffs, and beats in seconds
A quick music making app
MIDI Sketch is built for one thing: catching a musical idea before it disappears.
Random Melody in your head? Chord progression you just found? A drum groove you're humming? Open the app, tap out the idea, and hear it back immediately — no menus to dig through, no setup required.
Four focused editors, one tap away
- Melody — a two-octave piano roll. Tap a cell, hear the note.
- Chords — lay out a progression bar by bar, with instant playback of each voicing.
- Riff / Tab — a 6-string tab grid with five tunings (Standard, Drop D, Open G, Open D, DADGAD) and a built-in chord library for quick reference.
- Beat — a drum grid covering kick, snare, hi-hats, toms, crash, and ride.
Built for speed, not composition. MIDI Sketch is a sketchpad, not a DAW. No mixer, no staff notation, no multi-track sessions — just the fastest possible path from idea to captured sketch. Max three taps to start entering notes.
Everything you need to finish a thought:
- Adjustable BPM with tap-tempo
- Full undo/redo history
- Attach a voice memo (up to 60 seconds) to any sketch — hum the part you can't quite notate yet
- Add a quick text note alongside any sketch
Your sketches stay on your device. No account required, no cloud sync forced on you — everything is saved locally the moment you make it, so you can capture an idea offline, on a train, in a rehearsal room, anywhere.
When you're ready to share or back up an idea, unlock:
- Email export — send a sketch (notation, chords, tab, or beat pattern, plus any voice memo) straight from the app
- Microsoft OneNote sync — send sketches to your own OneNote account to keep alongside the rest of your notes
The core toolkit — all four editors, voice memos, text notes, and up to 10 saved sketches — is free, no strings attached. The one-time unlock removes the sketch limit and adds export.
Whether you're a songwriter, guitarist, producer, or just someone who gets musical ideas at inconvenient times, MIDI Sketch is there to catch them before they're gone.