Crossword Genius

Second note put in score is wrong (10)

Ross

I believe the answer is:

supertonic

'second note' is the definition.
(in music, second note after the tonic)

'put in score is wrong' is the wordplay.
'is wrong' is an anagram indicator.
'put'+'in'+'score'='putinscore'
'putinscore' is an anagram of 'SUPERTONIC'.

(Another definition for supertonic that I've seen is " second note".)

I've seen this clue in The Guardian.
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