Perfect pitch, also known as absolute pitch, is the ability to identify and recreate a musical pitch without the use of an external reference. People with perfect pitch can name the note of a sound they hear, and they can also sing or play a note at a specific pitch without any prior reference.
Perfect pitch is a rare ability, with only about one in 10,000 people having it. It is thought to be a combination of genetic and environmental factors. People who have perfect pitch often start showing signs of the ability in early childhood. They may be able to identify the notes of songs they hear on the radio or they may be able to play simple melodies on a musical instrument by ear.
