melodize

verb (used with object), mel·o·dized, mel·o·diz·ing.

1. to make melodious.

verb (used without object), mel·o·dized, mel·o·diz·ing.

2. to make melody.
3. to blend melodiously.

verb

1. (tr) to provide with a melody
2. (tr) to make melodious
3. (intr) to sing or play melodies

1660s, from melody + -ize. Related: Melodized; melodizing.