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 a string orchestra the instruments are: Bass Violin Viola Cello.
In the band but not in the orchestra
The name of a device used to conduct an orchestra is a baton.