Note of aria with codas? (3)

I believe the answer is:

fah

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'note' is the definition.
(fourth note in sol-fa notation, anglicized version)

I don't understand the rest of the clue.

(Other definitions for fah that I've seen before include "Doh ray me ... soh" , "Fourth note" .)

I've seen this clue in the Sydney Morning Herald.

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