Welcome.
You may have read on here before you joined about your Roland. That is a good "deck" or recording device. You should tell us more about YOUR aspect of live music recording.
i.e., what type of music. What type of venues (large, small, clubs, arenas, etc). Where, location wise in venue, do you typically buy tickets. Do you know the band(s) and or crews of any of these bands.
Oh, and budget for external microphones.
That sort of information will help us answer your questions. There is certainly a wealth of knowledge on this site.
Peace Love Music