Cal Bach has an amazing program this weekend, of music you get few opportunities to hear: Heinrich Biber's Requiem and Agostino Steffani's Stabat Mater. If you don't know Biber, you should: he was among the greats in the generation of German composers just before J.S. Bach, and a marvel. Look for his violin music, played by Andrew Manze, all mad filigree and deranged harmonies. I love it.
I've heard some of Biber's choral music as well, a performance of Missa Christi Resurgentis by Manze and the English Consort. Hoo boy!
You can hear Cal Bach in three excellent venues; tickets are $25/18/10: