i can play b, a, g, f, but when i play the e and d, it goes into the higher octave.


any help??

I think there are two probable causes. One is what Micron said. Another is one I have had occasionally. It is that the octave key doesn't completely come down on the hole at the top of the neck after you push the G key down.

I know I was just giving a specific example to look for.

yeah micron is probably right. if you have been playing with the octave key part it might have bent and would cause a leak of air. Which would make your notes higher. Or it could be that you'r reed alignment is off.