Classical musicians, including brass players, generally peak in their late 30s in terms of physical ability and mastery of their instrument, with a noticeable decline starting in their 40s and 50s.

“brass players that classical musicians in General they tend to Peak in terms of of their their physical qualities their ability to dominate the instrument in their late 30s and you start to see a little bit of drop off in their 40s and 50s”