Figured bass

Figured bass, or thoroughbass, is a kind of integer musical notation used to indicate intervals, chords, and nonchord tones, in relation to a bass note. Figured bass is closely associated with basso continuo, an accompaniment used in almost all genres of music in the Baroque period, though rarely in modern music.
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Noun
1. a bass part written out in full and accompanied by numbers to indicate the chords to be played
(synonym) basso continuo, continuo, thorough bass
(hypernym) bass, bass part