So I just got a used gemeinhardt yesterday, but something is wrong. I just can't seem to get above the Ab in the second octave without the sound giving out. I'm constantly running out of breath, and my tone is very airy. Is this typical for beginners, maybe there's a leak in the pads somewhere that's causing this? Mind you I'm a high school student doubling sax and flute, so I might just need adjusting. Let me know what you guys think.