There are literally thousands upon thousands of different Trumpet models designed to meet the needs of individual players.
there is four modern trumpets
36 trumpets
Pre-valve trumpets they were either natural or keyed trumpets. They didn't have valves. They weren't invented until 1822.
The standard version uses four trumpets.
If you are referring to Trumpets in today's time, they are made in a few different places. Trumpets made by Conn Selmer Inc (Benge, Bach, King, Conn, ect...) are made in Elkhart, IN.
as many as you want
it really depends on how many GOOD trumpets are in a band. I would say about 12. I t aslso depends on the size of the band.
yes, trumpets are used in blues music frequently, usually accompanied by a piano or a guitar. trumpets are not usually the main instrument though, as there can be many different instruments playing at the same time
Four
Usually 2 to 4.
7
Pocket trumpets, like normal trumpets, are most often keyed in Bb, but this doesn't mean that all pocket trumpets are in Bb.