Music to amuse the children? (5)

I believe the answer is:

swing

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

I don't understand the rest of the clue.

(Other definitions for swing that I've seen before include "Reversal of fortune" , "Piece of playground equipment" , "Shift opinions; hang" , "Change opinion" , "Move like a pendulum" .)

I've seen this clue in the Evening Standard.

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