Browse and play Genius Mixes. Tap Genius (tap More first, if Genius isn’t visible). Swipe left or right to access other mixes. To play a mix, tap 
.
A Genius playlist is a collection of songs from your library that go together. Genius is a free service, but it requires an Apple ID.
A Genius Mix is a selection of songs of the same kind of music, recreated from your library each time you listen to the mix.
Use Genius. Turn on Genius in iTunes on your computer, then sync iPod touch with iTunes. Genius Mixes are synced automatically, unless you manually manage your music. You can sync Genius playlists.
Browse and play Genius Mixes. Tap Genius (tap More first, if Genius isn’t visible). Swipe left or right to access other mixes. To play a mix, tap .
Make a Genius playlist. View Playlists, then tap Genius Playlist and choose a song. Or from the Now Playing screen, tap Create, then tap Genius Playlist.
Replace the playlist using a different song: Tap New and pick a song.
Refresh the playlist: Tap Refresh.
Save the playlist: Tap Save. The playlist is saved with the title of the song you picked, and marked by 
.
Genius playlists created on iPod touch are copied to your computer when you sync with iTunes.
Note: Once a Genius playlist is synced to iTunes, you can’t delete it directly from iPod touch. Use iTunes to edit the playlist name, stop syncing, or delete the playlist.
Delete a saved Genius playlist. Tap the Genius playlist, then tap Delete.