HTC DROID Incredible - Manual (Page 238)

Music
1
1 Tap to turn shuffle on or off. (Shuffle is off when button is gray.)
Press and drag your finger across the progress bar to jump to any part of
the song.
Tap to go to the Library.
Tap to go to the previous song in the Now playing list.
Tap to play, pause, or resume playing the song.
Tap to go to the next song in the Now playing list.
Tap to toggle between showing the Now playing list and Playback screen.
Tap to cycle through the repeat modes: Repeat all songs, Repeat current
song, and Don’t repeat.
When playing music and the screen turns off, you can control the music
playback right from the Lock screen when you “wake up” the phone by
pressing POWER. If you do not see the playback controls on the Lock
screen, tap anywhere on the screen to display the playback controls.