I put Blood Witch into Audacity and lower the tempo by 10%.
edit: It's a really good album. I haven't listened to it in a long time, but I listened to it a few more times and it's wicked good. It's still an amazing Melvins album, although I don't think I can compare it to the old albums. They're so different (but then again, do you really want Melvins to keep releasing the same albums over and over again?)