In February 2009, GALLERY CRAWL visits with Bill Fontana as he puts the finishing touches on his sound installation SPIRALING ECHOES, which essentially uses San Francisco City Hall as a musical instrument, shooting ultrasonic beams of bird, underwater and city street sounds off the walls of the building's rotunda. A few blocks away, New Langton Arts, a gallery known for its cultivation of innovative contemporary art, most particularly performance and time-based media, launches EVERY SOUND YOU CAN IMAGINE, an exhibition of musical scores. Robert Shimshak, the co-curator of the show and the art collector whose work anchors it, explains the connection between musical notation and visual art.