HandCompose: MIDI Studio

HandCompose turns your phone or tablet into a portable music studio. It's a touch-first multitrack MIDI sequencer and DAW (digital audio workstation) that lets you sketch an idea, build it into a full arrangement, and export a standard MIDI file — all from the device in your pocket. Lay down clips on the timeline, fine-tune every note in the piano roll, pick instruments from a General MIDI sound set, and hit play. Everything is powered by a bundled FluidSynth software synthesizer running on a low-latency audio engine, so what you hear responds instantly to your touch. WHAT YOU CAN DO • Multitrack arrangement — Build songs from multiple tracks, each with its own instrument. Drag clips around the timeline to structure your verse, chorus, and bridge. control. Zoom and scroll to work on the big picture or a single phrase. • General MIDI instruments — Choose from a full GM instrument library, from pianos and strings to synths and a dedicated drum kit. • Real-time playback — Change tempo, mute, and solo tracks live while the song plays. Nothing is "baked in," so you can experiment freely as you listen. • Undo & redo — Every edit is reversible. Drag a whole clip and undo it in one step. • Save & load projects — Your work autosaves automatically, and you can keep multiple named projects to come back to later. • Export to MIDI — Render any project to a standard .mid file you can open in desktop DAWs, notation software, or share with collaborators. BUILT FOR TOUCH The interface is designed from the ground up for fingers, not a mouse. Custom scrubbing and pinch-to-zoom gestures make navigating the timeline and piano roll fast and natural. A clean transport bar keeps play, stop, and tempo always within reach. LOW-LATENCY SOUND Audio runs through a high-performance native engine for tight, responsive playback with minimal delay — important when you're auditioning ideas in real time. WHO IT'S FOR • Songwriters and composers who want to capture ideas on the go • Beatmakers sketching drum and instrument parts • Music students learning arrangement and MIDI • Anyone who wants a simple, capable mobile sequencer without a subscription HandAcompose starts you with a clean, empty project — no clutter, no demo content to delete. Just open it and start writing. Download HandCompose and make music wherever you are.