Good point Tech.
There is a big difference in an orchestra and a marching band.
I thought in the school brochure of years gone by the real frown was on marching bands.
I knew lots of people in orchestra that were JWs. just not marching band. Most of the people who play an instrument well started at a younger age. Most JW parents could not afford the private lessons that would require. Plus if you are playing an instrument used in an orchestra, dont you need to play WITH people?