About 2,4 billion CDs are sold annually. The number of recorded CDs and blank CDs sold has been about equal.

In August 1983, Peter Stewart of Birmingham, UK set a world record by disco dancing for 408 hours.

Klezmer music is derived from two Hebrew words, clay and zimmer, meaning “vessel of music.”

The Beatles song “Martha My Dear” was written by Paul McCartney about his sheepdog Martha.

Since its launch in 1981 the song Memory of the musical Cats has been played on radio more than a million times.

A grand piano can be played faster than an upright (spinet) piano.