Don't forget about the Roland's Jump Mark feature which I use with SMFs . Mark 4 places in an arrangement where you might want to jump back to to keep the song going. Very useful to keep the dancers happy.
BK-9 has so much going for it for live preformamce. One Touch setups,give you 4 setups for every Style. Enough for a lot of variation of Styles. Took me awhile,to get a handle on them but one button changes are great while your busy singing.
Takes time to program but to me worth it and Covers all I need at this point