Which of the following is NOT true concerning why overblowing on an air-jet instrument causes a higher pitch to be played? Overblowing accesses an upper resonance of the tube. Overblowing increases the air speed to match the frequency of the pitch. The period of oscillation for the air jet's motion into and out of the tube is the same as the period of a resonance frequency of the tube. Overblowing decreases the lip-to-edge distance of the cut-up to match the frequency of the pitch