Directory of nearly 500 choral groups in Northern California which perform for the public. 1-3 pages of information on each chorus, based on information submitted via a questionnaire. Indexes by type of chorus, conductor, rehearsal day, rehearsal location. Appendixes list resources of value to choruses, such as information about performance licensing, publishers and vendors selling choral scores, libraries with choral scores, agencies to contact for soloists, orchestras which contract to perform with choruses, etc. Includes a short history of choral singing in Northern California. Of interest to choral singers, choral directors and managers, singers and musicians who perform with choruses, music teachers interested in referring students to choruses, foundations and other agencies which grant financial support to choruses, and the concert-going public. This is the 4th edition (1st edition published in 1985).