Ok, get all their albums. They're all great, and I'd have to agree with the others that the song you heard was probably from Hatebreeder, because of the vocals, but the music is quite a bit different. Here's something that will help:
Something Wild: lots of neoclassical stuff, keyboards = harpsichords/organs mostly
Hatebreeder: a little "happier sounding" than something wild, less neoclassical, and "bloopy-bleepy" keyboard sounds are used a bit, but still some organ and harpsichord stuff
FTR: (i know you have this, but for the sake of comparison) no organs/harpsichords, very "happy sounding" parts in the songs (such as kissing the shadows). and lots of synth stuff.
Hatecrew Deathroll: a departure from their earlier styles, but very good. heavier, and without a neoclassical vibe like their earlier albums. lots of shout-chorus stuff used.
Are You Dead Yet?: even more of a departure from older stuff (really nothing like it). simpler, (yet still catchy) riffs, and nice intros/choruses, but sometimes weaker "empty-sounding" verses (title track, for example)in comparison to earlier albums that were much more layered.
Anyway, my introduction to COB was first through HCDR, then HB, followed by AYDY, FTR, and finally, SW.
