Leprous is a band that you probably haven’t heard of, which is a damn shame. These guys were the backing band for Ihsahn (Emperor) for 2009 and the first half of 2010, if that gives you any clue as to how talented they are. Around since 2001 with an EP, a demo and one full-length album, the band is back with their newest release, Bilateral. Laced with heavy doses of 70’s prog rock but with a thoroughly modern twist, this album rolls up and down like a roller coaster. But is it the awesome speedy ride you crave or the disappointing kiddy ride that you have to ride with your wee young’un? Check after the jump for the answer.