Is there a trope for "songs with riffs that remind you of other songs"? Because I can't separate Mario's invincibility music from "what's the buzz, tell me what's a-happenin"

During the Temple Scene I tend to hear oinking. Is there a trope for this sort of hidden in plane site taboo?

Removed the following lines

• The Other Darrin: Carl Anderson (who Trope Codified "black Judas" and died of leukemia in 2004) vs. Murray Head in the album, especially the latter's seminal rendition of "Heaven On Their Minds"; Ian Gillan (of Deep Purple) vs. Ted Neely as Jesus. (The concept album came first, while the film cast was successful enough to spawn several Broadway revivals.)

For one thing, it was Vereen, not Anderson, who started the "Black Judas" trend. Also, given that this is a stage show and that by that simple fact, the various characters have had many, *many* different actors, I'm not sure if the trope applies.