In SWRP, you can find any sort of weapons, half of the shops have it. Others are clothes and avatars, but very few have ordinary goodies. The only shop I know having a little choice of music instrument is Furia's. As I needed one for a upcoming RP, I decided to make my own Kloo Horn. When I was building it, people came in and, maybe by symbiosis, started to get their own instruments. Once done, we made a little concert.
Now Salene will have to train to use it, she only know to play flute.