aglasshouse
Sludge metal has had it's roots particularly deep ever since the mid-late 80's. Bands formed in '88 - '91 began releasing albums throughout the 90s, inspired by the sound of Washington-based sludge predecessors The Melvins and particularly the albums Gluey Porch Treatments and Ozma. Being an almost solely American scene in it's early stages, sludge metal began springing up mainly in Louisiana, specifically the New Orleans area with it's bustling and diverse music scene. One of the more prominent bands of this area are Crowbar, who themselves released their debut Obedience Thru Suffering in 1991, preceded only shortly by New Orleans peers Eyehategod by about a year.
It took Crowbar a few albums to get going, though it's contested as to which album it was where the band had made their mark. Obedience Thru Suffering, although highly acclaimed and extremely good, was more or less a tribute to the Melvins. I hasten to say the band's self-titled was where the band just kept getting better and better (sans Time Heals Nothing, not a fan). The bands zenith is arguable yes, but I'd like to think it's 1996's Broken Glass.
Broken Glass is quite the experience. Packed with raw emotion and power, this is album is both a return to basics and inversely and improvement. The album sort of incorporates doom elements on some of the slower tracks, as well as featuring more tuned-down instruments than those on prior albums. It's honestly a unique experience listening to the cohesion of the instruments, even though they each have their own unique recording style. The drums don't sound booming, on the contrary their more akin to a garage-rock style. This is almost amusing (though not mock-worthy) to a certain degree, as the guitars are loud and booming, and the bass is one of the most audible instruments on the album as they both crunch out some of the most cantankerously unyielding riffs that grab you by the balls in the most wonderfully violent way. It's so strange because the album puts you in the sort of stranglehold where you can't just stop listening, but it's consensual on both sides. A strange fact it may be, but a fact it is.
If you are a fan of sludge or really hardcore material in general, I'd say this is the cream-of-the-crop when it comes to Crowbar. Go wild!