Piano music for duos (5)

I believe the answer is:

pairs

'for duos' is the definition.
('pair' can be a synonym of 'duo')

'piano music' is the wordplay.
'piano' becomes 'p' (musical abbreviation).
'music' becomes 'airs' ().
'p'+'airs'='PAIRS'

(Other definitions for pairs that I've seen before include "Duos" , "Couples" , "golfing matches" .)

I've seen this clue in the Evening Standard.

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