Like any patchy but promising debut from a classic rock group, it's often easy to underrate Queen's eponymous 1973 debut, since it has no more than one well-known anthem and plays more like a collection of ideas than a cohesive album. But what ideas! Almost every one of Queen's signatures are already present, from Freddie Mercury's operatic harmonies to Brian May's rich, orchestral guitar overdubs and the suite-like structures of "Great King Rat." That rich, florid feel could be characterized as glam, but even in these early days that appellation didn't quite fit Queen, since they were at once too heavy and arty to be glam and -- ironically enough, considering their legendary excess -- they were hardly trashy enough to be glam.