Pick a song from your music library. Tap out the tempo from memory. Compare it to the correct answer.
Play with any song or music video on your iPhone or iPod Touch.
Pick individual songs, or shuffle through an artist's discography, a playlist or your entire library
As you go from song to song, colors change based on the album artwork
Compete against your fellow beat detectives in daily competitions
Test yourself against a neverending series of drum patterns at varying tempos. Try and top the GameCenter leaderboard.