Musical themes are a powerful element in music, as they can instantly capture the listener's attention, convey emotions and messages, and create a sense of unity and coherence throughout a composition. Some synonyms for musical theme include motif, melody, tune, riff, refrain, leitmotif, melodic line, and musical phrase. A motif is a recurring musical idea that can be developed and transformed throughout a piece. A melody is a series of musical notes that form a cohesive whole and are easily recognizable and memorable. A tune is a simple and catchy melody that is often associated with a particular song or genre. A riff is a short and repetitive musical phrase that serves as a signature element of a piece. A refrain is a recurring chorus or phrase that is designed to be easily remembered and sung along with. Leitmotif refers to a musical theme that is associated with a particular character or theme in an opera or film.