These explanations are based on my personal observations. It is by no means a comprehensive list. Songwriters use many more devices than those described here. Alliteration Alliteration occurs when two or more words have the same initial sound. An allusion is a reference to some well known place, event or person.
Allusions are powerful, because they connect a song to a bigger concept in a single word or phrase.
Here the songwriter has let the playwright handle the heavy lifting in terms of establishing character. While effective, this approach is risky because it depends on the listener being familiar with the allusion. I see my face on the surface. I look a lot like Narcissus. One is overt, the other is implied.