Nothing here is pre-composed. The server samples one confirmed mainnet block every few seconds; each block is performed as a two-bar phrase (first half of its transactions, then the second half). If no new block has arrived when the phrase ends, the orchestra holds the last chord instead of inventing notes.
TempoNetwork throughput from the last minute of performance samples. Faster chain, faster music.—
KeyThe epoch number walks the circle of fifths — the key changes once per epoch.—
ModeSmoothed success rate of transactions: clean blocks sound Lydian or Ionian, failure-heavy blocks sink toward Aeolian and Phrygian.—
ChordThe block hash picks the chords of its two bars, so every block has its own harmony.—
NotesUp to 48 transactions from the block, played in block order — named program families first, then bots and failures. Section = the program family the transaction calls; pitch = its signature; loudness = its fee; length = its compute units.signature → pitch
RhythmHi-hat density follows how full the block is; failed transactions crackle like glass; heavy compute adds a kick.txs → hats