| 1. | a slow, dignified dance of Spanish origin. |
| 2. | the music for this dance, based on an ostinato figure. |
| 3. | a musical form based on continuous variations over a ground bass. |

passacaglia
(Italian, from Spanish passacalle, or pasacalle: "street song"), musical form of continuous variation in 34 time; and a courtly dance. The dance, as it first appeared in 17th-century Spain, was of unsavoury reputation and possibly quite fiery. In the French theatre of the 17th and 18th centuries it was a dance of imposing majesty. Little is known of the actual dance movements and steps. Musically the passacaglia is nearly indistinguishable from the contemporary chaconne; contemporary writers called the passacaglia a graver dance, however, and noted that it was identified more frequently with male dancers.
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