HyperDic: major_mode

English > 1 sense of the expression *major mode*:
NOUN	communication	major mode, major key	a key whose harmony is based on the major scale

English > *major mode*: 1 sense > noun 1, communication
Meaning	A key whose harmony is based on the major scale.
Synonym	major key
Broader	key, tonality	Any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music