Crossword Genius

Falsetto refrain (5)

Ross

I believe the answer is:

yodel

(Other definitions for yodel that I've seen before include "Sing falsetto like Swiss mountain people" , "Sing (in the Alps)" , "Sing in high pitch like Swiss mountain dwellers" , "Sing in intermittent falsetto" , "Alpine mountain call" .)

I've seen this clue in the Newsday.
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