👉 In music theory, a percentage of sound usually refers to the proportion of different frequencies that make up a given note or chord; for example, in piano music, about 70% of the sound consists of the fundamental frequency and its harmonics. In everyday listening, understanding percents in audio might mean knowing that background music often has 50-60% of its sound from mid-range tones like voices, with lower and higher frequencies making up the remaining percentages.
