themes, contrasting Your browser does not support the audio element. [ English ] Definition A theme is a musical idea constituting the main melody of the composition; contrasting themes are two or more themes which are quite different from each other such as smooth and lyrical contrasting with angular and disjointed. Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2016-05-07 18:04:41