Know of any good beginner Guitar or Banjo lessons/teachers in South Kensington area?

[xaj]

Know of any good beginner Guitar or Banjo lessons/teachers in South Kensington area? I have 2 boys, one in Reception the other in year 2 who'd like to start learning the guitar or banjo. Does anyone have any recommendations on teachers, classes etc?

[hdoodle]

Go to Chimes, the music store near the south ken tube station. There is a bulletin board with musicians who give lessons just outside.