Top teeth should lightly touch the top of the mouthpiece about 1/2 inch down, with top lip pushing down around mouthpiece. Bottom lip should roll slightly over bottom teeth and give solid support (touching about 1/3 to 1/2 way down the reed). Teeth and lip should form a firm seal around complete mouthpiece (like a draw string pouch). You should be able to firmly hold the mouthpiece in the mouth if someone should shake it lightly. There should be no puffing of cheeks or lips. The chin should look flat and pointed. Air should be blown toward the reed and the head should be held up. Remember to keep the corners of the mouth clenched but not smiling.
You may subscribe to the below list by following the procedure given. The words "Your Name" should be replaced with your legal name. This list will bring you daily correspondence about Clarinet and can be a valuable source of information.
Send one line message (no Subject Heading)
subscribe klarinet Your Name
I am not sure this list is still in operation. Anyone that tries this please let me know .