31. The auditory pitch ( sound ) of the flatulence outburst can also be affected by the anal embouchure . 32. Brass players practice " lip slurs ", which are unarticulated changes in embouchure between partials. 33. The " long tones " exercise is used to develop embouchure , along with airstream and breath control. 34. Proper embouchure alone will cause the closing reed to cease vibrating and induce the opening reed to start. 35. However, it is not true that no embouchure is required to make a beautiful-sounding tone. 36. In the 1990s, after a laborious but successful embouchure change, Blanchard was as busy as ever. 37. Students typically receive instruction in proper posture, hand position, embouchure , tone production, and reed making. 38. They will have an embouchure which places an even pressure across the reed by carefully controlling their lip muscles. 39. Some noted brass pedagogues prefer to instruct the use of the embouchure from a less analytical point of view. 40. Stevens-Costello embouchure has its origins in the William Costello embouchure and was further developed by Roy Stevens.
