Longest running Broadway show

The Phantom of the Opera is the longest running show on Broadway. It opened in 1988 and is still performed.

First note on a piano

The first note on a piano keyboard is the note A0 in scientific pitch notation.

Last note on a piano

The last note on a piano keyboard is the note C8 in scientific pitch notation.

First CD available

The first CD (compact disc) was available in 1982.

75 minute symphony

If a composer writes a symphony that is 75 minutes long, that is equal to 25 songs at three minutes in length.

Piano keys

A piano has a lot of keys; 88 in total. If you took two seconds to hit each key, you would need just under three minutes to hit all 88 keys.

Nonstop music

If an average song that you listen to is approximately three minutes in length, you would be able to hear exactly 480 different songs in a 24 hour period.