Harmonic Series: Fundamental frequencies and overtones
Musical Intervals: Frequency ratios and musical relationships
Tuning Systems: Equal temperament, just intonation, historical tunings
Non-Western Tuning Systems: Microtonal structures, cultural variations
Consonance & Dissonance: Physical and perceptual basis
Timbre & Tone Color: Harmonic content and spectral characteristics
Musical Scales & Modes: Frequency organization in musical contexts
Rhythm & Timing: Mathematical relationships in temporal patterns
Harmony & Chord Structure: Frequency interactions in chords
Acoustic Instruments: Vibrational physics of different instrument families
Voice & Speech: Acoustics of human voice production
Temperament & Tuning History: Evolution of tuning approaches
Psychoacoustic Bases of Music: How perception shapes musical structures