I also study in Hangzhou, but not a private musical instrument store, but a private teacher. The cost varies according to the level of study. It takes 40-50 hours for two juniors to attend classes together, and 60-70 hours for one-on-one students. Don't go to large classes where many people study together, the effect is not good. Our teacher is very kind and often rubs rice at her place. (* _ _ *) Hee hee ...