[Jorchime]

Yeah, this can be confusing. This is referring to the "growl" effect in complete vocal technique. Imagine Christina Aguilera making a dramatic car engine growl when you kick down the gas pedal. I think this is roughly what this is about.

Not growl as in death metal vocals.

[rmnclmnt]

Yeah I got that but more often than not now the growl vocal technique is associated with extreme metal genre

[jesperordrup]

Exactly