Meditation does not necessarily mean sitting in lotus pose with the eyes rolled up. Anything can be a meditation. Playing music properly is a very good way to do it.
If there is a spiritual teaching which is beneficial to people, it should be beneficial when one sits in a closed room where there is no one to offend him and it should be beneficial right in the market place where he is confronted by so many problems and people. All through he should be able to keep u his spiritual light as his eternal guide, under all circumstances, in all places and in all kinds of social and non-social situations. Otherwise I do not see any value to that wisdom.