Jane Pierce wrote:

>Do you know when the notes and measures began to be used to denote time
>signature and key signatures to simplify composition? When were they
>first used?

This was a very gradual process, generally from the Renaissance period
to the 17th century.  Some old customs lasted into the 19th century, for
example, the use of the tenor clef in orchestral parts for trombones.

>Also, when you go to concerts, where do you like to sit in relationship
>to the orchestra, full center on the same level as the orchestra plays or
>above the orchestra if there is a balcony.

I think that the balcony usually gives a better sound than the orchestra
floor, but it depends a lot on the particular hall.  If possible, it's a
good idea to try out various locations until you find one that sounds best
to you.

Jon Johanning // [log in to unmask]