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Sure, but that’s not what they are asking. A scream, a shout and a metal growl are different things, they asked about screaming.
You have to stop projecting the sound from the diaphragm and move it to the throat. Essentially the opposite from singing instructions. It is obviously really bad for the vocal cords.
No it’s not, it’s energized just right. Otherwise you run into either over or under frequencies. Both pretty catastrophic.