Chord Builder
Simultaneous pitches and the geometry of voice leading
Chords are simultaneous selections of pitches over a root. Choose root and quality, see interval ratios, and inspect the minimal-semitone voice-leading map between two chords.
Audio plays when you press Play. Each chord is rendered as sine tones.
Chord A
Structure: 1 – 3 – 5
Semitone gaps: 4 – 3
Notes:
C ·
E ·
G ·
Chord B
Structure: 1 – 3 – 5
Semitone gaps: 4 – 3
Notes:
G ·
B ·
D ·
Voice leading: A → B (minimal-motion mapping)
C→B-1 semi
E→D-2 semi
G→G0 semi
Total motion: 3 semitones
A chord is a simultaneous selection of pitches. Voice-leading minimizes total semitone motion between chord transitions — the geometry of harmony.
gaps encoded: 4 – 3