Marble Music Track

Place keys, drop a marble, and hear it play a tune.

Marble Music is a musical machine you build with your fingers. Every key is a note. Drag one out of the tray, tilt it, and the marble bounces off it and rings it as it falls. Line up a few and you have a melody; add rails to carry the marble across a gap, and a song.

HOW IT WORKS
• Drag a key out of the tray. Its colour is its note.
• Tilt keys to throw the marble left or right.
• Add rails to bend the path: straight, curve, scoop, S-bend and wave.
• Tap Play and watch the marble run. Undo anything.

FOUR INSTRUMENTS
Wood keys ring like a marimba, glass like a glass harp, metal like a glockenspiel, glow like a kalimba. Every note is recorded from real instruments, and the physics is exact: the same track plays the same way every time, on every phone.

SCALES THAT KEEP YOU IN TUNE
The tray only offers notes from your scale, so anything you build sounds right: major and minor pentatonic, major, natural minor, blues, or the full chromatic keyboard when you know what you want.

THIRTEEN LOOKS
Candy is the default. Behind it are twelve studio looks, from bright wood and brushed metal to dark sweeps where glowing keys light the wall.

A SONG TO START YOU OFF
Twinkle Twinkle Little Star comes built as a finished machine. Play it, take it apart, move the keys and make it yours.

SHARE THE RUN
Export any track as a vertical video with sound, ready for Photos, Messages, WhatsApp, TikTok or YouTube Shorts.

FREE TO PLAY, ONE PURCHASE
Build with up to five keys in a track for free, as many tracks as you like, with every instrument, scale and look. One purchase removes the five-key limit on every track, for good. If you bought Marble Music when it was a paid app, you already have everything.

NOTHING TO SIGN UP FOR
No ads, no account, no subscription. It works with the phone in flight mode, and your tracks stay on your phone.

From the makers of the Sounds Like Physics channel, where the marble machines play a guess-the-song every day.