Unfigured bass

A bare stepwise bass, rising an octave: the Rule of the Octave IS the answer — write the figures the Rule supplies, then realize what you wrote.

The bare minor descent: you have played this exact bass with its figures printed — now supply them yourself, remembering which accidental belongs to which chord.

A bare running bass with three formulas hidden in it: the leading tone asking for its 6, the 5̂-to-6̂ step that means deception, and the dominant that needs its 7 at the close.

The bare minor bass: the ♭6 falling a half step onto the dominant can only be the Phrygian formula, and the repeated dominant at the close can only be the 4–♯ suspension.

A bass that climbs by step, each tone struck twice: the only engine that fits is the rising 5–6, and the second strike of every pair writes its own 6.

A bare bass falling in fifths through the whole minor key: the circle needs almost no figures — the one decision is where the sharp finally belongs.

The comprehensive test, major: half the Rule of the Octave, a diatonic descent to the supertonic seventh, and a suspended close — every figure derivable from what the corpus taught.

The comprehensive test, minor: the raised ascent to a half close, the half-diminished 6/5 carried through the cadential six-four, and a Picardy final — the accidentals are the examination, and every one is derivable.