Funny enough I was talking to my high school music teacher today about the (In our opinion) absence of music stores in San Juan (then again, we don't live in
PR). I don't know about the areas you mentioned, but he says there's a music store in San Juan that sells guitars and basses (my teacher's not a guitar guy so not sure about the level or quality of stuff there). He says it's around Plaza Las Americas, but across the street over by the Best Buy (NOT in Best Buy)...behind it or something. Don't know the name though...hope that helps!
Been giggin' 
, on vacations in the Rincon area for about 10 years with a crap Smarvo 60Wx12" bass amp I bought back then. Looking for a music store in the Aguada, Aguadilla or Mayaguez area where I might be able to buy a better quality/power bass amp. Anyone got any ideas? Thanks 
