As evident from its name, the Davis Music Teacher's Association (DMTA) is an organization of local music teachers. It holds semi-annual student recitals, periodic master classes, and teacher get-togethers. Members also get to advertise their services on the DMTA website (http://www.dcn.davis.ca.us/go/dmta/) and on the list at Watermelon Music. Membership costs $15 annually.
If you are looking for a music teacher, this is a good place to start.