Aharmonic notation that uses a numbering system and single bass note to identify complete harmonies is called .

figured bass
bass
major harmony
consonance

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A harmonic notation that uses a numbering system and single bass note to identify complete harmonies is called  figured bass.

A part notated with figured bass consists of a bass line notated with notes on a musical staff plus added numbers and accidentals (or in some cases slashes added to a number) beneath the staff to indicate what intervals above the bass notes should be played

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