The Oakland Symphony Chorus performed Beethoven's 9th with the Oakland Easy Bay Symphony on May 14 and 16.

Three reviews:

http://www.insidebayarea.com/news/ci_15098328
http://www.sfcv.org/reviews/oakland-east-bay-symphony/oakland-east-bay-s...
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/05/18/DDT21DFC3P.D...

OSC has been running a workshop of the Bach B-Minor Mass and we're giving a free recital with the chorus and all the workshop participants on March 13th at the Oakland Cathedral.

More info on the OSC home page and at the cathedral's web site.

The Oakland Symphony Chorus is caroling on the following dates:

• Friday, December 4, in Jack London Square for the Holiday Lighting Ceremony. 6:06 PM - 6:30 PM
• Saturday, December 5, in Jack London Square for the Lighted Yacht Parade. 6:30 PM - 7:30 PM
• Thursday, December 10, at the Oakland Zoo/Flamingo Plaza for Zoo Lights. 6:30 PM - 7:30 PM

The Oakland Symphony Chorus will be performing in the annual Break Bread concert at the Paramount on December, 13.

In keeping with our tradition, OSC is putting together an ecumenical potpourri of holiday songs for our set...

The Oakland East Bay Symphony opened their season with an opera medly on November 13.

I've found one review so far...