I personally think lesson frequency depends on your experience level. If you are already an experienced musician with other instruments or at least comfortable reading music, once a month or so is probably fine as long as you’re disciplined enough to practice regularly. If you also need help with more basic skills like reading music, once a week will be more beneficial. You’ll want someone to help drill you in notes and rhythm, tell you when you are consistently playing a wrong note, rushing or lagging, etc.
