Hello Guy's ,I got a sax in the new year but only had it out the other day ,don't know anything about music can't read it and so on never played the sax but always wanted to learn how, the make of Sax is (Volt by Voogenreiter) (it says that on the side of it) the problem I have is one of the keys is sticking ,it is the key you press with your saturn finger (your 2nd finger) left hand,How can I stop it ?, Please guy's ,thank you..