Classic
MIDI · Recording · Visualization
See the music. Steal the show.
A MIDI visualizer and recorder for macOS, Windows and Linux. Plug in your keyboard, hit record, and watch every note come alive as piano rolls, sheet music, chords, guitar, drums and light.
Built with Java · Kotlin · JavaFX
macOS · Windows · Linux
// How it works
Three steps to the spotlight
01
Plug in
Connect any MIDI keyboard or controller over USB. MelodyMatrix finds it instantly — no drivers, no fuss.
02
Hit record
Play. Every note, pedal and velocity is captured with microsecond timing, powered by virtual threads.
03
Put on a show
Pick a view — or five — and watch your performance come alive on screen.
// The views
One take, endless shows
Click any view to watch it in action. Each one reads the same recording and paints it a completely different way.
Visual FX
Piano with Effects
Notation
Treble and Bass Clef Staff
Notation
Chords on Staff
Data View
MIDI Events
Data View
Note Charts
Theory
Circle of Fifths
Theory
Chord Relationships
Guitar
Guitar Note
Guitar
Guitar Chord
Audio
Audio Spectrum + MIDI
Percussion
Drum Kit
Hardware
LED Strip
// Download
Grab it. It's free to try.
Available for macOS, Windows and Linux, with auto-updates via jDeploy. Head to the download page to pick the right build for your machine.
Download ↓
macOS · Windows · Linux
// Latest release
MelodyMatrix 1.2.1
Released on 2026-07-24
Roadmap
Tutorials are on the way
Step-by-step videos to get the most out of every view — and how to build your own light show. Here's what we're planning.