Dr. Greenberg is a wonderful teacher and a very accomplished musician. He is a very patient and empathic teacher, and is the perfect instructor for all levels and abilities. He helped me to prepare to audition for transferring to the Guitar and Lute Program at University of California, Irvine. If it had not been for his support and encouragement I might not have persisted to actually go and be accepted. He helped me to be more confident, as he is very analytic about what is holding back your best playing. His insight is very unique, intuitive, and sensitive, so I think his feedback has helped me realize subtle things that undermine my best efforts. And, best of all, you get to hear for yourself the difference in your playing. He is very good about bringing your attention to the before and after, and has taken the dread out of having my mistakes recorded. You will be very lucky to take lessons with him, as you are getting the very best instruction for whatever style guitar playing you wish to learn or improve.