Confidence to experiment with music

My son has been learning Simply Music for some time now, and has recently taken up the cello at school. It is clear that the skills he has learned from Simply Music are helping him with his cello playing. He already has a good understanding of rhythm and a good understanding of the way music is constructed, the way it works together. He has begun composing on the cello because of what he has been doing on the piano. Simply Music has given him the confidence to experiment with music, to try new things to create, which I doubt he would otherwise have.