At graduation, accidentally turn off slow music (6)

I believe the answer is:

adagio

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'music' is the definition.
(adagio is a kind of music)

I don't understand the remainder of the clue.

(Other definitions for adagio that I've seen before include "develops slowly" , "Movement in slow time" , "(A movement) to be played slowly" , "Slowly and graceful, in music" , "In slow time (mus.)" .)

I've seen this clue in The Irish Times.

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