For whatever reason (?) my Father took me to work one day.
I was about 7 years old and the band at 45 Commando, Arbroath was preparing for a big show/parade.
I sat there for hours watching all the musicians clean their instruments and their uniforms. And Dad even allowed me to touch his drum.
I was allowed to tighten some screw things around the drum as he hit the skin and listened. Woohooooo!
I’m an expert :o)