Hey Dominika,
It's cool to see a fellow Anathema fan from my ancestral land of Poland... right on!
As for the whole clean singing vs. growling debate...
I love 'em both.. my main opinion on this matter is:
Appreciating growling vocals is very difficult at first... like enjoying any radical form of music, or a new food, it is an acquired taste. I remember when I got into all this underground metal I hated growled vocals at first, for obvious 'newbie' reasons. But the more I listened to brilliant bands who used them (i.e. Opeth, old Anathema, Rakoth, Edge Of Sanity) the more I grew comfortable with them. Not to mention the lyrics upon which they used the growls were killer, and thus I began to mouth them along with the growls... and they slipped into my subconciousness.
Anathema's 'Serenades' really helped me get comfortable with growled vocals... the lyrics and music were just too awesome for me to say 'uum, this is growled!'
Growled vocals evoke some kind of primitive yet deep spirituality...
It takes a while but anyone can get used to it...
And now I find myself trying to get used to Stephen O'Malley's writhing, blistering vocals on the new Khanate... s-i-c-k!!!
