The best-known example of tonality flux, and one of the two Partch uses as illustration, is the beginning of his composition The Letter, in which the kithara alternates between two chords, one major and one minor, with the minor third of one nestled inside the major third of the other (given here in Ben Johnston's pitch notation):
The most notable example of tonal transition, and one of the two Partch examples used to demonstrate it, is the opening of his composition The Letter, where the kithara shifts between two chords, a major and a minor, with the minor third of one chord embedded within the major third of the other.