Bernardo Storace, last bars of Passagagli sopra A la mi re and beginning of Passagagli sopra C sol fa ut, from Selva di varie compositioni(Venice, 1664)

The passacaglia (/pæsəˈkɑːliə/; Italian: [pasːaˈkaʎːa]) is a musical form that originated in early seventeenth-century Spain and is still used today by composers. It is usually of a serious character and is often, but not always, based on a bass-ostinato and written in triple metre.

https://en.wikipedia.org/wiki/Passacaglia