Usually a set of 4.
A symphony or an Orchestra. There are also some rock drummers who have placed and used timpanis on their drum sets.
Most orchestras will use a snare drum, a bass drum, and a set of timpanis.
Violins, trumpets, piano, clarinets, cornets, harp, voice, cellos, lutes, timpanis, violas, flutes, recorders, etc.....
Yes, the noun orchestra is used as a collective noun for an orchestra of musicians.
The big xylophone used in the orchestra is called a marimba.
The wood xylophone used in the orchestra is called a "marimba."
Yes, in a standard orchestra there are four of them.
Violins are typically in orchestras
it depends on how big the orchestra is. there is no set number.
In the band but not in the orchestra
in a string orchestra the instruments are: Bass Violin Viola Cello.
The name of a device used to conduct an orchestra is a baton.