I think it is the first time LP does that. I remember from the making of MtM that Rob's a fan of the non 1/4 time signatures. Every studioalbum since Meteora has one song in 3/4 (From the Inside, Wake/Little Things, Burning in the Skies). But is alternating between 3/4 and 4/4 is equal to a time signature in 7/4?