The pentatonic scale, used in ancient chinese compositions, is made up of notes

the pentatonic scale has 5 notes

Explanation: The word "Penta" means that a given set has 5 elements, in this case, talks about the scale has 5 tonic elements or notes.

There are different types of pentatonic scales, such as the major pentatonic or the minor pentatonic, that can be crafted by selecting the 1, 2, 3, 5 and 6 degrees of the major scale (major pentatonic) or the 1, 3, 4, 5 and 7 degrees of the minor scale (minor pentatonic)

well no because those options are in a house