Don' t ! Use a Single to start....... Use a Double reed , It is the easyest to blow for the beginner. By Placing the Mouth call on the middle of the tongue and then close your mouth the laytex should not touch the roof of your mouth. By adding presure to the laytex with your tongue, take a breath and push(Force) the air out between the tongue and the laytex. You should get a High pitch squeel. By dropping your jaw a little ,you will take presure off the reed and allow , more air to exit,, this will give you a Lower pitch. They are the two (Notes) you need to Yelp. Now by trying slow to say the word Chu-ck with the air presure that you allow out,(Chu) being the High pitch and (ck) being the Low pitch ,,,speed the word up you should be close to the Turkey Yelp....BT