Hey everyone! I'm sure some of you have seen my posts, I'm a complete beginner with trumpets. I don't even have one yet. I'm posting this in regards to learning the lip buzz. Since I don't have a horn yet I figured I'd at least practice this to be proactive. I've been practicing my embouchure by saying "M" and then making a "p" kind of sound to open the lips enough. As I have watched a bunch of videos, I've found the the sides of the mouth are not up like a smile of course and I have that like I want it, but I'm not understanding something. How tight should the sides of the mouth be? Should I be tightening the sides of my mouth to a noticeable degree? I have heard some people say it should be tight, but I'm not sure what that means exactly. I'm hoping to hear what all you have to say about this as I'm not having much in way of results (I have had some though, but I'm worried I'm going too tight).