A music production company featuring The Sapphire String Quartet (classical string enesmble) and the Chanteuse Jazz Ensesmble (straight ahead, standard jazz, Blues, R&B). The members of these groups are the finest, top-call musicians in the Bay Area. The string players are members of the SF Symphony and Opera Orchestras. The jazz musicians have played with artists such as Ray Charles, Aretha Franklin, Mariah Carey, Celine Dion to name a few.