Excuse me, which company in Mianyang City trains guitar (advanced), or which teacher taught it, and the contact information. thank you

I've been to all the music shops opposite the king, and I know some bosses. I also studied in Zhujiang Music Store. I don't know Hou Cheng, but the boss is nice, but you can go to the rock music store opposite Suning. The boss's surname is Wang (I mean playing guitar), or Mianyang Guitar and Xixi Association or something, but it's a bit difficult to get along with. Anyway, go and see, study hard and practice every day! !