1) Compose 2) Melodise 3) Supply a melody for 4) To compose or play melodies 5) To make melodious 6) To write a melody for 7) Write Found on https://www.crosswordclues.com/clue/melodize
Mel'o·dize transitive verb [ imperfect & past participle Melodized ; present participle & verbal noun Melodizing .] To make melodious; to form into, or set to, melody. Found on http://www.encyclo.co.uk/webster/M/45