The movements are unified by the short introductions in the first, second and fourth movements, as well as an intermezzo in the third. The last is a violin solo representing Scheherazade, and a similar artistic theme is represented in the conclusion of the fourth movement. Writers have suggested that Rimsky-Korsakov's earlier career as a naval officer may have been responsible for beginning and ending the suite with themes of the sea. The peaceful coda at the end of the final movement is representative of Scheherazade finally winning over the heart of the Sultan, allowing her to at last gain a peaceful night's sleep.