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
Two groups of five is ten
You will have four in each of the five groups.
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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