You're looking for option 9 (source: Sony Xperia Z2 User guide)
1 Browse your music
2 Search songs on Music Unlimited and all songs saved to your device
3 View the current play queue
4 Album art (if available)
5 Tap to go to the previous song in the play queue
Touch and hold to rewind within the current song
6 Play or pause a song
7 Tap to go to the next song in the play queue
Touch and hold to fast forward within the current song
8 Shuffle songs in the current play queue
9 Repeat all songs in the current play queue
10 Progress indicator ? Drag the indicator or tap along the line to fast forward or rewind
11 Total time length of current song
12 Elapsed time of current song