Some of the flutes discovered in china could play a five-note scale this scale is called the

This scale is known as a pentatonic scale

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"

Cthe lindisfarne gospels