Horn players use a relatively small mouthpiece for playing on a very large range. By doing some buzzing exercises with and without the mouthpiece we will better understand how it works. It isn't rocket science, but isn't easy to understand either. These exercises help to better understand how it works, and by doing yourself, you will explore your own embouchure, and then try to apply those discoveries while playing. As I say on the end of the video, there are different approaches. Some teachers recommend only doing mouthpiece exercises, because buzzing on the lips is different. Then there is an other approach: Doing lip buzzing but assuming that is different! An athlete doesn't necessarily needs to practice how to do a slip, because won't need to do a split while running. But, by doing it, will increase his flexibility and better understand how the muscles work.
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