Crossword Genius

These could be major or minor climbs (6)

Ross

I believe the answer is:

scales

This clue is a double definition.

'these could be major or minor' is the first definition.
(musical scales)

'climbs' is the second definition.
(scaling is a kind of climbing)

(Other definitions for scales that I've seen before include "Balance - climbs" , "Set of musical notes - balanced on a fish?" , "Flakes of fish skin" , "Climbs the weight measuring device" , "Sequences of musical notes" .)

I've seen this clue in The Independent.
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