1. (noun)key, tonality any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
Definitions of 'tonality'
Webster 1913 Dictionary
1. (noun)tonality the principle of key in music; the character which a composition has by virtue of the key in which it is written, or through the familyrelationship of all its tones and chords to the keynote, or tonic, of the whole
Definition of tonality 
