TONALITY n.
hich 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 Fétis, term the principle of tonality. Helmholtz.…
TONIC n.
of the most popular among letter systems of notation (at least in England), based on key relationship, and hence called "tonic." Instead of the five lines, clefs, signature, etc., of the usual notation, it employs letters and the syllables do, re, mi, etc., variously modified, with other simple signs of duration, of u…