Loud note from flutes in the string orchestra (5)

I believe the answer is:

lutes

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'loud note from' is the definition.
I can't tell whether this definition defines the answer.

'flutes in the string orchestra' is the wordplay.
'LUTES' is hidden within the letters.
However, I am uncertain how this is indicated.

Can you help me to learn more?

(Another definition for lutes that I've seen is " Old stringed instruments".)

I've seen this clue in The Globe and Mail.

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