Is The Balanced Embouchure (BE) only for advanced/experienced players or is it of use for beginners, too?

BE is very suitable for beginning players. The fundamental exercises are easy to learn and can be performed even by someone who has never touched a trumpet before. In a lot of cases beginners tend to do the exercises easier than advanced players. BE gives you the right fundaments and builds an embouchure right from the very start. For advanced players it is a great and safe way to build and/ or restore a healthy 'balanced' embouchure when frustrated by forcing, wrong methods, teeth problems, heavy duty playing etc. Many advanced players and even pro's can benefit from the exercises in BE.