San Francisco - Mandolin virtuoso David Grisman, who has recorded with Jerry Garcia and The Grateful Dead, has sued Google's YouTube for copyright infringement, the Associated Press reported. Grisman and business partner Craig Miller, who also co-own the Acoustic Disc record label, filed the suit on May 10 in San Francisco, and are seeking unspecified damages from Google. ''We are looking out for ourselves and all the other people like us -- musicians and independent publishers,'' Miller told AP.