Stringer takes your music library (locally on your iPhone/iPod touch or that you have stored in iTunes Match) and shuffles it right from the start. As a song plays, you can pull your String to the left and expose other songs on that album.
When you do this, you’re in “Edit Mode” and you can add songs to the current String and rearrange them as they go on. Swipe back and your String now contains the new songs you’ve added, coming up next.
A single tap on the current album art toggles between play and pause.
You can flick through your String upward and downward to advance or step backward through tracks.