Four lanes, four original musical styles, and patterns that grow from single notes into chords.

Play

D / Left - lane 1

F / Down - lane 2

J / Up - lane 3

K / Right - lane 4

Space / Enter - start the track

X - choose next song before starting

M - sound on or off

P - pause

R - resume

N - play again

Progression and score

Tap the matching arrow when a falling note reaches the bright line. Each song starts gently, then adds steady beats, offbeats and two-note chords. Hit both lanes of a chord together. Accurate hits build a combo and restore rhythm; missed notes and offbeat taps drain it. Choose a song before starting with X: Copper Steps (lo-fi, 120 BPM), Night Bus (chiptune, 125), Neon Rain (drum & bass, 150), or Low Tide (ambient, 96). Tempo stays steady within each song while note patterns get harder. Sound is optional.

A perfect hit earns 100 points; a good hit earns 60. Combos multiply this up to four times. Each chart has a finite maximum score. Tempo is fixed per track, with harder note patterns later. Scores are local practice in this release.

Write your own approach

Launch meter --script or type script during play. Edit policy.sh, chmod +x policy.sh, then ./policy.sh. fixtures chooses repeatable practice; standard returns to manual play. Stop cancels. Saved files survive re-entry. cat REVISION-2.txt reads the current guide without replacing your edited README. GIF, replay and receipt exports are local practice; no ranked scores.

Try scripts try [email protected] or install an editable copy with scripts install [email protected] my-meter. ORIGIN.json and LICENSE.txt carry attribution and license. Existing files are never overwritten. Handle simultaneous notes and compare all four charts. The visible approach is available to scripts; unseen future notes are not.

Use man meter for the reference, or play Meter.