5000
This varies widely from one orchestra to another and also depends on the particular piece being played.
There are about three to four trumpet players in an orchestra.
how ever many you want
Yes, it is. Lots of classical music is played by a symphony orchestra. There are thousands upon thousands of classical orchestral works - too many to list here.
It varies. Ever hear the term "12 piece orchestra"? That's an orchestra with 12 players.
They were small orchestras, sometimes consisting of only one to two people per instrument/part. 25 members in a typical Classical-Period orchestra.
how many concert orchestras are there playing a Western style of classical music
There are usually 2-3 Cello's in an orchestra
For pieces that use it, they only use one.
A full-size orchestra consists of about one hundred musicians, who play instruments in the string, brass, woodwind, and percussion sections. There are also chamber orchestras, which are smaller and consist of fifty musicians or fewer.
A full symphony orchestra could easily have 80 people.
Jazz, orchestra, bluegrass, western classical, 1950s-style blues and rock and roll, rockabilly/psychobilly, traditional country music, bluegrass, tango and many types of folk music.