Ok then would you like to inform me of the purpose of growling then? Its obviously not natural to sing like that, and its not pleasant to listen to, so why else would they use it? Mikael said they started out as a satanist band..
Of course its ridiculous and silly, that was my point. But even more ridiculous is to use growls without a reason. Bal sagoth change vocals when a new character is speaking, Opeth just seem to switch vocals randomly. At first I thought it was like Mikael was being possessed, you know when demons take over the body. This would make sense, but after reading the lyrics, there doesn't appear to be much of a pattern.
Take "The moor",
(growl) vows in ashes
I pledge myself to no-one
Seethed and spiteful
all shudder at the call of my name
then, for no apparent reason, the vocals go clean
(clean) If you'll bear with me
you'll fear of me
can anyone point out a pattern?