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* BrokenBase: Whether Phil Collins' renditions of the song during live performances are just as a good if not better than Peter's, specifically the version on ''Seconds Out''. Some think Phil actually sings the song with a tender and sweeter tone and love how chaotic he performs the Willow Farm section. Other fans think Phil isn't suited to the songs theatrics and believe only Peter can pull it off.
* ItsTheSameNowItSucks:
** Probably the main reason "Supper's Ready" remains the only side-length epic Genesis released; the band split up "Dancing with the Moonlit Knight" and "The Cinema Show" from ''Music/SellingEnglandByThePound'' as well as "The Story of Albert"[[note]]"Behind the Lines", "Duchess", "Guide Vocal", "Turn It On Again", "Duke's Travels", and "Duke's End"[[/note]] on ''Music/{{Duke}}'' when the band thought they were too similar to "Supper's Ready". Both suites have extremely different moods and, in the ''Duke'' suite's case, styles from "Supper's Ready" overall, though, so the comparisons may not have been inevitable.
** The song ''itself'' experienced one; the "Willow Farm" section was intended entirely to be its own separate song, but it was added at the last second because the song was already becoming a longer remake of the band's previous epic, "Stagnation".
* ToughActToFollow: Genesis themselves considered it one, to the point where they split up not one but two songs of similar length to avoid comparisons.
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