There is a small recurring joke involving Trent writing song lyrics as he's doing something else (such as driving). He always hits a snag, needing a rhyme for an "ane"/"ame" sound, at which point somebody suggests "My soul's waves of grain" - which is a lyric first performed in a Mystik Spyral song in the second season episode "Ill". This happens both in "Camp Fear" (fifth season) and "It Happened One Nut" (third season); in the latter episode, Trent vaguely remarks, "I've heard that somewhere before."
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