Quote Originally Posted by keithwms View Post
In classical music, it is widely accepted that one cannot be a composer and a performer (or critic)...

Even in the physical sciences (my area), ...
Respectfully disagree.

In my area, music (this photography thing is just a hobby) I don't think this is "widely accepted" at all. There are certainly examples to the contrary from every age: Bach, Mozart, Beethoven, Listz, Bernstein - the list goes on and on.