A440, also known as Stuttgart pitch, is the musical pitch corresponding to an audio frequency of 440 Hz. This pitch standard is crucial for tuning musical instruments, particularly the note A above ...

Add Yahoo as a preferred source to see more of our stories on Google. From classical to rock, musicians tune their instruments to a common pitch so they can play together harmoniously. For at least 80 ...

Is tone deafness a real condition - or just a lack of training? In this social experiment, we asked everyday people in Claremont and Montclair, California to sing the note A440 (the tuning standard).

From classical to rock, musicians tune their instruments to a common pitch so they can play together harmoniously. For at least 80 years, that standard pitch frequency has been A440 Hz — which defines ...