one answer to your many questions
<How many architects pen ideas while listening to Sonatas from the masters?
While I can't speak for more firms than the one i work for here is a quick unofficial poll of what architects in my office listen to.
Talk Radio 3
Country Western 1
classic Rock 4
mix of a lot of stuff 2
David Lee Roth 1 *
nothing 4
of course this poll was taken purely by what I hear when I go by each of their desks. Some where headphones, so in these cases I took a guess based on previous conversations with them.
-Steve G.
*he has been threatened with bodily harm many times from those in the cubes around him