Your piano, in full colour.

LumaKeys turns a MIDI file into a cinematic piano performance video. Open a file, press Play, and watch the notes fall onto a full 88‑key keyboard while a sampled grand plays them back. Export the whole thing as an MP4 with audio.

See it in motion Support

For macOS. Coming to the Mac App Store.

LumaKeys playing Canon in D with notes rendered in the Baroque Filigree material

Twenty-three ways to look

Every note material is drawn procedurally rather than tiled from an image, so notes stay sharp at any length and no two bars repeat. Here are six of them.

Baroque Filigree note material — **Baroque Filigree**Gold volutes and leafwork scrolling down a deep blue bar.

Ruby Jewel note material — **Ruby Jewel**Chamfered corners and hard facet seams, cut like a stone.

Ice Shard note material — **Ice Shard**A broken silhouette with fracture planes running through it.

Teal Crystal note material — **Teal Crystal**Fine internal crystal structure under a cut surface.

Aurora Gradient note material — **Aurora Gradient**Colour mapped across the keyboard from bass to treble.

Prismatic Marble note material in rainbow colour mode — **Prismatic Marble**Veined stone, shown here in rainbow colour mode.

More than a pretty window

Playback, rendering and export all happen on your own Mac.

Colour that is yours

Pick any colour from a full picker, give each track its own hue, or run a rainbow across the keyboard. The light coming off a key always matches the note that struck it.

A keyboard you can dress

Six key textures, independent colours for white, black and pressed keys, and adjustable glow, hit size, hit life and hit density.

Export a real video

MP4 with audio at your chosen resolution, frame rate and bitrate, with hardware encoding where your Mac supports it and a live estimate of time remaining.

Write something small

The built-in MIDI Maker gives you a piano roll for sketching a pattern, hearing it back, loading it into the visualizer, or exporting it as a MIDI file.

Everything in one place

The Catalog keeps your MIDI files, saved patterns and finished videos together, ready to load again.

Tuned to your machine

Three quality presets, from Cinematic down to Performance, so older Macs still get a smooth picture.

The LumaKeys Key Editor — **Key Editor**Every change previews live against the real 88-key layout.

The LumaKeys MIDI Maker piano roll — **MIDI Maker**Sketch a pattern, preview it, then play or export it.

The LumaKeys export panel — **Export**Choose format, resolution, frame rate and bitrate, then render.