Homotonal (same-tonality) is a technical musical term that describes the tonal structure of multi-movement compositions.
According to Keller's definition and usage, a multi-movement composition is 'homotonal' if all of its movements have the same tonic (keynote).
Similarly, Vivaldi's sonata for oboe and continuo RV53 (n.d.) is homotonal [all movements in C minor].
Keller himself was keen to emphasise that different classical composers showed differing degrees of interest in homotonal structure: Although Mozart, as opposed to Haydn, tended to work within narrow tonal frameworks, he did not carry the homotonal approach very far into his maturity .
[citation needed] Musicologist William Drabkin, for example, asked the question "doesn't 'homotonality' sound a trifle queer?"