How long did dragons live?

Call local music stores for recommendations. Music stores only rent instruments to students who have instructors, so the store employees will have a good handle on area teachers. Speak to the music teacher at school for recommendations. If you have a college or university nearby with a music department, call there or ask if you can post a notice on the department's bulletin board. I found my violin teacher on Craig's List. His response included his education background, experience and a list of references.