In music how do you measure pitch?

In music, pitch is measured in Hertz (Hz), which represents the number of sound wave vibrations per second. The higher the frequency, the higher the pitch. For example, the note A4 has a frequency of 440 Hz, while the note C5 has a frequency of 523.25 Hz.

Pitch can also be measured in cents, which are logarithmic units used in music theory. One cent is equal to one-hundredth of a semitone. This means that a semitone is equal to 100 cents, and a whole tone is equal to 200 cents.

The relationship between frequency and pitch is logarithmic, meaning that equal changes in frequency do not correspond to equal changes in pitch. For example, a change in frequency from 440 Hz to 441 Hz corresponds to a change in pitch of about 1 cent, while a change in frequency from 880 Hz to 882 Hz corresponds to a change in pitch of about 2 cents.

The measurement of pitch is important in music for tuning instruments, creating melodies, and determining the overall sound of a piece of music.