Answer: transpose

AnswerCrossword Clue
TRANSPOSEInterchange.
TRANSPOSEChange keys, in music.
TRANSPOSESwitch
TRANSPOSEMake lemons into melons, e.g.?
TRANSPOSEInterchange
transposeTransfer to a different place or context
transposeTransfer (a term), with its sign changed, to the other side of an equation
transposeCause (two or more things) to change places with each other
transposeWrite or play (music) in a different key from the original
transposeChange into a new form
transposeto change the order or position of