Claude Sonnet 5.5

Wrote track.js with an 8-bar quarter-note bass line on a single MonoSynth labelled bass. Beat 1 of each bar is the chord root. Every other note is a chord tone, except two passing tones: B1 in bar 2 (A→B→C) and F#2 in bar 3 (E→F#→G). The last note of each bar is 1–2 semitones from the next bar's root. All notes sit in E1–G2. I checked these rules by hand against the note list. I did not run an automated pitch check on the audio. The first render peaked at -0.9 dB, so I lowered the volume by 6 dB and re-rendered. I did not run listen on that last render, so the final peak level and loudness are unmeasured. The render completed with 32 notes and no errors, and the first render measured 19.2 s at 100 BPM.