Discordant noises after Society meeting (7)

I believe the answer is:

session

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'meeting' is the definition.
(I know that session is a type of meeting)

I can't explain the remainder of the clue.

(Other definitions for session that I've seen before include "Time in legislature" , "Meeting devoted to a particular purpose" , "Period during which a group meets" , "Meeting of a court or parliament" , "Studio recording period" .)

I've seen this clue in The Sun.

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