Wiktionary
modal scale
n. (context music English) A tonal scale used in most forms of Western music.
Usage examples of "modal scale".
He uses well-tempered tuning as a starting point, takes off from there into the deepest realms of advanced number theory, circles back all of a sudden to the Qwghlmian modal scale, just to keep them on their toes, and then goes screaming straight back into number theory again.