Schemata

The Monte: a two-chord model — an applied dominant resolving up a fourth — stated and restated one step higher, the bass climbing do–fa, re–sol.

The Monte again with the inflection in a different voice: the tenor’s C becomes C♯ in its own line as the second rung arrives.

The Fonte: an applied 6/5 resolving down into the supertonic’s minor color, then the same gesture one step lower resolving into the tonic — the well that re-finds home.

The Fonte after the double bar: the same paired descent in a new key, the sopranos of both models falling as the sevenths they carry resolve.

The Ponte as a named formula: the first phrase reaches the dominant, the bridge stands on it — six-four, gathering seventh — and the reprise crosses over into home.

The three formulas in their native order: the Monte climbs to the dominant, the Ponte stands on it as the double bar, and the Fonte re-finds the tonic on the far side.