Street performers should obtain the consent of the municipal government, mainly considering the appearance of the city. You give the city government the address where you want to perform, and they will check if there are any others in the same area. Just go directly to the local government and ask. From 9: 00 a.m. to 5: 00 p.m. from Monday to Friday, at any time, the front desk service staff will give you patient answers or contact specialized personnel. Nobody cares about opening a guitar training class privately. You can advertise in the newspaper yourself. Some people also recruited private teachers from universities, so I found a music student to teach children at Victoria University.