if the tongue is tense, that tension will carry over into the embouchure (and vice versa), interfering with vibration of the reed and frustrating the player.
如果舌头太紧,这种力量会同时影响到口型,改变哨片的振动并影响演奏者。
these will help you to progress improve technic, tone and of course embouchure , if done dilligently.
如果你正确练习,这些将帮助你提高技巧、音色,当然还有口型。
very important, you do not have to change your embouchure to single lip in order to play in the jazz style. and you simply just continue to do your regular so-called classical training.