 In clarinet playing, the lower lip is rolled over the teeth and corners of the mouth are drawn back, which has the effect of drawing the upper lip around the mouthpiece to create a seal due to the angle at which the mouthpiece rests in the mouth.With the saxophone embouchure, the lower lip rests against, but not over, the teeth as in pronouncing the letter "V" and the corners of the lip are drawn in (similar to a drawstring bag).With the less common double-lip embouchure, the top lip is placed under (around) the top teeth.