Source: The San Francisco Examiner.
Left Coast Chamber Ensemble: The new music group’s 28th season streams free, with a 7 p.m. Sept. 21 concert featuring flutist Stacey Pelinka in a premiere by David Dominique, Zeppelin, a duo by Laurie San Martin, and Kurt Rohde’s remixes of songs by Hildegard and Joni Mitchell, and trios by Beethoven and Albert Roussel. http://www.leftcoastensemble.org
Old First Concerts: September live streams include guitar soloist Lyle Sheffler (8 p.m. Sept. 18), Ensemble Ari playing works by Amy Beach, Addie Camsuzou and Sofia Gubaidulina. (8 p.m. Sept. 25) and Del Sol String Quartet playing music by Jonah Gallagher, Erika Oba and Rajna Swaminathan.(4 p.m. Sept. 27). oldfirstconcerts.org
San Francisco Contemporary Music Players: The free YouTube event “Homogeneous Infiltration” features avant-garde pianist composer Myra Melford as improvising soloist, with hosts Amadeus Regucera and Kyle Bruckmann (7 p.m. Sept. 18). sfcmp.org