Pitch is the musician's term for the frequency of a note. Pitch refers to how
high or low a note sounds. High pitches are on the right side of the piano keyboard
and low pitches are on the left side of the piano keyboard. Pitch ranges are
often referred to in terms of the human singing voice.
Soprano - a high woman's voice
Alto - a low woman's voice
Tenor - a high man's voice
Bass - a low man's voice
The accepted pitch standard is A-440, i.e., the note A above middle C has a
frequency of 440 cycles per second.