Range is achieved through lip compression and airflow manipulation rather than brute force, unlocking higher notes with less strain.
The BE method is famous for its "Rule Breakers." These are exercises that intentionally go against standard classical training, such as: Playing with a "pucker" (Advanced Lip Flips). Intentional double-pedal tones. Extreme jaw movements. the balanced embouchure jeff smileypdf
Trumpet players who successfully integrate Smiley’s concepts generally report massive shifts in their playing efficiency: Range is achieved through lip compression and airflow