Traditional motifs in piece of music caught by solver in France (5)

I believe the answer is:

topoi

'traditional motifs' is the definition.
(plural of topos, a motif or figure)

'piece of music caught by solver in france' is the wordplay.
'piece of music' becomes 'op' (abbreviation for opus).
'caught by' indicates putting letters inside.
'solver in france' becomes 'toi' ('you' in French).
'op' put into 'toi' is 'TOPOI'.

'in' acts as a link.

I've seen this clue in The Guardian.

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