Four staves, one wire

Elgar, Nimrod (Enigma Variations) arranged for string quartet — the wire text beside what it renders.

Every token on the left is coloured from data the build already computed: the wire lexer names each span's kind, and the reader reports the sounding midi behind each note. Nothing in the browser reads token text, and nothing re-parses the score.

Use the control above the pane to switch what the tint groups: moments (the model's ordered chain), events (one span per wire token), or bars. All three span sets are precompiled, so switching costs no network and no parse.

The timestamps on this page are generated, not performed. Neither source file carries performance timing, so Score.stamp() synthesized every <|SECONDS|> rider from the notated score. Nothing here was recorded, aligned, or measured against a player.