HyperDic: tonic_key

English > 1 sense of the expression *tonic key*:
NOUN	communication	tonic key, home key	the basic key in which a piece of music is written

English > *tonic key*: 1 sense > noun 1, communication
Meaning	The basic key in which a piece of music is written.
Synonym	home key
Broader	key, tonality	Any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music