Note Rider

Steer into each note's lane as it arrives (arrows, a swipe or a finger). ♪ Your song opens MIDI or audio.

A song comes down the track as glowing notes: its melody, low notes in the low lane and high notes in the high one. Steer the sled into each note's lane as the note arrives and it plays for its own length, so catching every note plays the whole tune; a missed note stays silent. Pick the instrument at the top: piano, guitar, steel guitar, harp, organ, synth, or vibes.

The built-in tunes are Ode to Joy, Twinkle, Twinkle, Little Star and Frère Jacques. Or open your own with ♪ Your song: a MIDI file, or a recording, whose tune a note finder hears on this device; each caught note then plays its own slice of the recording. In 2D on a phone held upright, the notes fall down three lanes side by side; on a wide screen they slide in from the right. The 3D button turns the track into a road coming toward you. The file is read on this device and never leaves it.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.