Eternal Source of Light Divine is a duet for soprano voice and trumpet. The solo trumpet part remains the same (also allowing for performance on natural trumpet) and the remainder of the ensemble performs the string parts, creating a blended sound by performing in cup mute throughout. The soprano line could be performed on a D trumpet (or piccolo) to make it an all-trumpet version.

Folgende Optionen können gewählt werden um diese Ausgabe zu konfigurieren: