This site talks about musical pitches. The frequency determines how high or how low a pitch can sound, for example: The pitch of a high D ( Or D5) is 587.33 Hz while a low pitch such as a low C (C0) is 16.35 Hz. The pitch of a standard A (A4) rests at 440 Hz. Most people tune with A4. The ending statement of the article states that some musicians can slowly gain a degree of perfect pitch ( Being able to sing each individual note, improvise, compose by ear etc.) just by being familiar with A4 note.
The Math Around Us
