I am having trouble playing the C scale high to low. When I go from a D (3 keys pressed on both left and right hand, as well as the octave key) to a C (middle finger left hand - no octave key), the C note come off an octave higher initially before it drops down. This happens even though I take care to remove my thumb from the octave key before I play the C. If I stop the D note with my tongue before starting a C or if I slow the airflow down enough I can avoid this problem. Am I doing something wrong?
Any suggestions on how to transition correctly?
Any suggestions on how to transition correctly?