Korobeiniki
Traditional (1860s) — public domain · A minor
Yes, the Tetris theme — and a Russian folk song a century older than the Game Boy. Built to be played faster and faster.
Setup
The playhead stops at each note until you play it. Best for learning the notes — take as long as you like.
Sets how fast the playhead moves between notes once you've played them.
Within 25 cents counts as in tune.
A click through the song needs a steady beat, and there isn't one when the playhead waits for you.
Headphones keep the click and the guide melody out of the microphone. On speakers, both get scored as if you played them.
Timing calibration
If the trace consistently sits ahead of or behind the notes, nudge this. Positive values treat your playing as later than it was measured.