TONALITY
key, tonality
(noun) any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
Source: WordNet® 3.1
Etymology
Noun
tonality (plural tonalities)
(music) The system of seven tones built on a tonic key; the 24 major and minor scales.
(music) A sound of specific pitch and quality; timbre.
(music) The quality of all the tones in a composition heard in relation to the tonic.
The interrelation of the tones in a painting.
Source: Wiktionary
To*nal"i*ty, n. Etym: [Cf. F. tonalité.] (Mus.)
Definition: 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 family relationship of all its tones and chords to the
keynote, or tonic, of the whole.
The predominance of the tonic as the link which connects all the
tones of a piece, we may, with FĂ©tis, term the principle of tonality.
Helmholtz.
Source: Webster’s Unabridged Dictionary 1913 Edition