Here in the Bay Area it is common to hear that artists, musicians and dancers are losing the leases to their practice spaces so that high-paying dot commers can move in. Last weekend musicians all over San Francisco participated in Rock Out SF to raise awareness of the loss of Downtown Rehearsal Space which was home to hundreds of local bands. It's too soon to tell if the effort will have any affect, but it was wonderful to see so many come together to fight for a common cause.