
1) Baroque dance
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https://www.crosswordclues.com/clue/passacaglia

The passacaglia (ə; lang) 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. ==Origin== The term passacaglia (pasacalle; passacaille; Italian: passacaglia, passacaglio, pa...
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http://en.wikipedia.org/wiki/Passacaglia
[Godowsky] Passacaglia is a solo piano composition by the composer Leopold Godowsky. It was completed in New York, on October 21, 1927. The composition commemorates the one hundredth anniversary of the death of Franz Schubert. Typical of Godowky`s composition style, the piece contains dense contrapuntal, polyphonic, and chromatic writing. =...
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http://en.wikipedia.org/wiki/Passacaglia_(Godowsky)

slow solemn Italian or Spanish dance
Found on
http://phrontistery.info/p.html

• (n.) Alt. of Passacaglio
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http://thinkexist.com/dictionary/meaning/passacaglia/

(from the article `Webern, Anton`) ...many works, including the orchestral idyll Im Sommerwind (1904; antedating his study with Schoenberg), several string quartets, the songs based on ...
Found on
http://www.britannica.com/eb/a-z/p/25

(Italian, from Spanish passacalle, or pasacalle: `street song`), musical form of continuous variation in 34 time; and a courtly dance. The dance, as ...
Found on
http://www.britannica.com/eb/a-z/p/25
Pas`sa·ca·glia Pas`sa*ca*glio noun [ Spanish pasacalle a certain tune on the guitar, prop., a tune played in passing through the streets.] (Mus.) An old Italian or Spanish dance tune, in slow three-four measure, with divisions on a ground bass, resembling a chaconne....
Found on http://www.encyclo.co.uk/webster/P/29
The passacaglia is an old Italian or Spanish dance tune, in slow three-four measure, with divisions on a ground bass, resembling a chaconne.
Found on http://www.probertencyclopaedia.com/browse/VP.HTM
an instrumental dance form usually in triple meter in which there are ground-bass or ostinato variations.
Found on https://www.encyclo.co.uk/local/21784
a chaconne with a ground bass in slow triple time, and always in a minor key.
Found on https://www.encyclo.co.uk/local/22288
No exact match found.