Jazz : East shore, Jiang Hu (have a jazz jam session, forgot when), then you should check the Beijinger or time out mag to see where are the Jazz gig... You' ll find
I actually perform in xian bar, for 3 more weeks with a Brazilian singer. There's one set that we only play bossa. But we don't do Jazz.
Wednesday, Friday, Saturday are good! we play with a really talented Australian trumpet Player.
Tuesday, thursday and sunday are soso. We just start with a new singer and we need to work more on the song list and the show.
Have a Good day