tonality vs minor mode

tonality and minor mode both are nouns.

Word	Noun	Adjective	Verb	Adverb
tonality	Yes	No	No	No
minor mode	Yes	No	No	No

As nouns, minor mode is a hyponym of tonality; that is, minor mode is a word with a more specific, narrower meaning than tonality:

tonality: any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
minor mode: a key based on the minor scale

Other hyponyms of tonality include major key, major mode, minor key, home key, tonic key.

tonality (noun)	minor mode (noun)
any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music	a key based on the minor scale