If you are stuck at high C, if your endurance is failing, or if you have been told you have a "smile embouchure" (pulling the corners back), then searching for "the balanced embouchure jeff smileypdf" is a logical step.
Players in Europe can find local teachers and distribution through Balanced Embouchure Europe Criticism & Perspective: the balanced embouchure jeff smileypdf
Jeff Smiley’s is a 149-page trumpet method book (published in 2001) that challenges traditional brass pedagogy by focusing on the "cause" (lip mechanics) rather than just "effects" like air or tongue position. Unlike standard methods that teach a static lip position, BE advocates for dynamic range-of-motion exercises to build a flexible and resilient embouchure. Core Philosophy: The Balance of Opposites If you are stuck at high C, if