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Slopsmith Note Detect Bass Benchmark — v1

A bass-focused companion to the guitar benchmarks (note_detect_v1 + note_detect_v2). Tests note_detect against bass- specific idioms: walking lines, octave jumps, root+fifth patterns, double-stops, and long low-E holds that stress YIN's accumulator at ~41 Hz.

• Tempo: 90 BPM
• Tuning: E standard 4-string (E1 A1 D2 G2, no capo)
• Audio: metronome click track only — play over the click.
• Duration: 181 s

Sections

Section	Tests
A. Open strings (slow walk)	Mono detection on each open string, low → high → low
B. 5th-fret (slow walk)	Fretted-note detection across the 4 strings
C. Sustained notes	3 × 4-second held roots
D. Octave walks	Root ↔ octave alternation, 2 strings + 2 frets up
E. Walking bassline	A minor pentatonic ascending + descending
F. Root + fifth pattern	Classic rock bass pattern (8 events)
G. Double-stops	2-string voicings — the chord-scorer test for bass
H. Long low-E holds	3 × 5-second E1 holds, stresses YIN under-buffer regime

Reporting

Diagnostic JSON schema is note_detect.diagnostic.v1. Filter benchmark_hint to bucket bass vs guitar runs.

Source

Built by docs/benchmarks/note_detect_bass_v1/build_benchmark.py.