Press the image of the album art on the Now Playing screen. A bar will appear at the top of the screen. In the left-hand corner of the bar, you'll see a symbol that looks like two arrows in a circle. This is the "Repeat" icon.
Tap the "Repeat" icon twice. When the symbol lights up in blue and has a "1" beside it, the iPod is set to play the current song on repeat.
Press the icon again to turn off the Repeat feature.
Some songs are just so good, you just have to hear them again. What you don't want is to have to keep starting the song over, tapping your iPod touch's screen to light it up and then hitting the "Back" arrow again and again. While the "Repeat" option might not seem immediately apparent on the iPod touch's button-free user interface, rest assured that it's there -- and it's simple to use, once you know where to find it.
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