i thought the same thing haha was hilarious

Interesting point! While Harper does indeed have a fairly low register and Brian has a fairly high one; they also use different screaming techniques. I'm fairly certain Harper uses fairly standard modern screaming technique, in the same vein as Courtney LaPlante and Tatiana Shmayluk, which makes sense considering Harper's musical background. However, I believe Brian uses a technique that blends falsetto and screaming. Justin Bonitz has demonstrated this style in some of his work as well. In other words, Harper tends to rely on her mid screams, whilst Brian relies more on a high scream technique. Because of this difference in technique, Harper would generally have a lower pitched scream than Brian no matter the ages or anatomies. I may be wrong though; it can be hard to actually hear what's going on in their throats when you can't see them or actually hear how they sound in the room. :P

@@AvengerofGallifrey Harper is using mid fry screams, I can do them as well, but for Brian I am not too sure. I believe he might be doing head voice fry screams which is something I can't do, it's very hard. Courtney uses fry screams as well but Tatiana seems to use false chord screams I think