Passacaglio, Passacaglia n. (Mus.) An old Italian or Spanish dance tune, in slow three-four measure, with divisions on a ground bass, resembling a chaconne.
... the passacaglia floated up and Katherine drank in its minor sweetness. Presently the dance changed into the chaconne with its prominent bass theme, again turning to the poetic and ... — Mistress Penwick • Dutton Payne