Brain recognizes music by rhythm or by intonation differences near main note {music, processing}. Brain analyzes auditory signals into tone sequences with pitches, durations, amplitudes, and timbres. First representation {grouping structure} segments sound sequence into motifs, phrases, and sections. Second representation {metrical structure} marks sequence with hierarchical arrangement of time points {beat}.
Brain can find phrasing symmetries {time-span reduction}, using grouping and metrics.
Brain can hierarchically arrange tension and relaxation waves {prolongational reduction}. In Western music, prolongational reduction has slowly increasing tension followed by rapid relaxation.
1-Consciousness-Sense-Hearing-Music
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Date Modified: 2022.0225