Woodwind, strings, percussion and brass are the traditional 4 sections of an orchestra and modern orchestras would include a fifth section of 'keyboards'.
Brass, woodwinds, percussion, strings, and keyboards are the five general groups of instruments. Some people consider their voice to be a instrument as well.
One instrument is the kazoo.
The organ is a musical instrument.
four
You will have four in each of the five groups.
Two groups of five is ten
nothing
Idiophones and Membranophones
The vertebrates are further divided into five groups or classes.
Woodwind, brass, strings, percussion.
There isn't, a Rottweiler is 1 or the FIVE classification groups. The Rotweiler is the Animal out of the five.
piano