JMD tip: this info can be a little more sparse since days, venues, and city aren't going to help your audience anymore — unless you performed at a prominent venue like Carnegie Hall. Include that here (classy!).
SOUTH ASIAN SYMPHONY ORCHESTRA
Include or cut — use your judgement and know that this isn't a page where people spend too much time (we read a lot of analytics).
Friends of Music
CITY OF BEVERLY HILLS ~ CLASSICAL MUSIC SERIES AT THE LIBRARY
Look at this page as an opportunity to showcase the same info that's on your resume in a much more elegant and engaging way than reading a document of lists. And remember — less is more. Unless it was The Met, chorus gigs may not need to live here in perpetuity.