The Song:n order to make Song Reader more authentic, Beck filled it out with fragments of songs and melodies, as well as fictional album collections and song titles. On the back of "Saint Dude," there is an album listed called Male Quartette Collection, the greatest book ever compiled.
Many of the song titles of this collection are references to older sheet music-era songs, though from what I can tell, "There's No Room In This Quartette For You, Stewart" was made up by Beck and whomever helped him fill the book out. "Quartette" is the old-timey, sheet music way to spell "quartet"; I do not know who "Stewart" might be.