Please practice hard and get all your fingerings right. As you can see, some of the notes have more than 1 fingerings, so please learn to use the other alternate fingerings as well. It helps you to play running passages easily. For the tuning note C (3rd space; counting from bottom), don't just use right pinky, can use left pinky as well. Those who don't understand, please ask kengteng or zhixin to explain. Have fun with your clarinets! :)