Ok I decided to have a crack at explaining them now Ive had a good go at it, these are my interpretations of what the different Play Styles do so may not be correct. You have been warned! ;)
1 chord maj
2 chord maj7th
3 chord minor
4 chord min7th
5 triple arpeggio
6 2 note arpeggio
7 rising arpeggio
8 alternate arpeggio
9 note repeat
10 transpose up repeat
11 note repeat x2
12 transpose up repeat x2
13 up down arpeggio
14 rolling note
15 transistion down rolling
16 transistion up rolling