From Longman Dictionary of Contemporary Englisharrangerar‧rang‧er /əˈreɪndʒə $ -ər/ noun [countable] 1 someone who changes music that has been written by someone else so that it is suitable for a particular instrument or performance2 someone who arranges things for other people
Examples from the Corpus
arranger• Ellington got a great fellow composer and arranger.• In 1997, Abercrombie had also played on composer / arranger Vince Mendoza's recording, along with Wheeler.• For the composer, arranger or copyist it covers every imaginable aspect of notation.• Immediately Miss Doris decided to promote her to dance arranger.• No arranger would be without it.• Torme, who has been an actor and author, taught himself how to be a first-rate arranger.• But Torme, the songwriter, arranger, drummer and pianist, always sings at a superior level in a jazz context. 