organized sound in time, structured by rhythm, melody, harmony, and timbre
mathematical foundation: pitch is frequency, harmony is frequency ratios, rhythm is time division
universal human expression: every known culture produces music
ancient origins: bone flutes (~40,000 years old), vocal traditions predating writing (invention)
functions: ritual, communication, social bonding, emotional regulation, memory encoding
Western tradition: plainsong -> polyphony -> tonal harmony -> twelve-tone -> electronic
non-Western systems: Indian raga (melodic modes), Arabic maqam, Indonesian gamelan, West African polyrhythm
music perception engages brain regions for language, motor control, emotion, and reward
digital music: synthesis, sampling, algorithmic composition, AI-generated sound in the Information Age
deep link to aesthetics: music is the purest case of beauty as mathematical pattern perceived through the senses