Two ways to make music dull? (7)

I believe the answer is:

humdrum

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'dull?' is the definition.
('humdrum' can be similar in meaning to 'dull')

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(Other definitions for humdrum that I've seen before include "Dull (of existence)" , "without incident" , "Everyday, boring" , "Workaday" , "Run-of-the-mill" .)

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

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