Hey all, a problem I've recently come into is that I can consistently play a high D/D# (By high, I mean on upper end of staff) but when it comes to the high C overtone, and the one above that, I can't really switch between those legato. For instance, I can play a low C all the way up to a middle A (middle of staff) legato fine, but above that I usually need to tongue in between the notes. It feels like I am needing to curl in my lips to get those extra overtones. So is it normal to feel that way? Do I just need to push extra air to get those high notes? Everytime I try to simply push more air, it works to an extent but I get much louder and I don't want to do that. I feel like I should be able to play a high C and such at the same volume. Let me know what you guys think, thanks.