Rapid series of ascending or descending notes on the musical scale (9)

I believe the answer is:

glissando

(Other definitions for glissando that I've seen before include "note series rapidly executed" , "(Musically) a rapid series of ascending or descending notes" , "Re-interpreting this musical direction" , "trombone slide, for example" , "Slide between two notes" .)

I've seen this clue in The Guardian.

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