Can anyone give me any tips with learning/trying to add a tounge arch to their playing? Also any bad habits or things to avoid when learning this would be good too. Also are there any ways to tell whether a tounge arch is something that would be benificial to add or not? Lastly, for the past 2 or so months I've been trying a few lip slur excercises given to me to specifically work on my range. I found they haven't worked and was suggested to try octave slurs instead of the more scale slurs + the up/down slurs going through the 0,2,1,12,23,123 pattern provided to me then. I was told I need to "find the key to unlock my upper register" with the only limitation not to back off the air in the higher notes. (Always use more air the higher you go). Any suggestions on where to go from here? Any other things I should try? Thanks for reading and posting.