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but I wouldn't say their music is more beautiful or complex than BFMV's.
Before I Forget is actually a new, reworked version of an old Slipknot song, Carve from 1997. The squealing at the end of the song is Morse code for the word Slipknot. Also, if you play this part of the song backwards, you can hear Corey Taylor repeating "You're wasting it."