Once you're on the Now Playing screen, a few controls await your fingertip—some obvious and some not so obvious.
Play/Pause (▸/) button. The Pause button looks like this when the music is playing. If you do pause the music, the button turns into the Play button (▸).
Previous, Next (, ). These buttons work exactly as they do on an iPod. That is, tap to skip to the beginning of this song (or, if you're already at the beginning, to the previous song). Tap to skip to the next song.
If you hold down one of these buttons instead of tapping, you rewind or fast-forward. It's rather cool, actually—you get to hear the music speeding by as you keep your finger down, without turning the singer into a chipmunk. The rewinding or fast-forwarding accelerates if you keep ...