A few weeks ago, someone started a thread about getting big sound in the upper register, and it morphed into a general conversation on range and upper register after I hijacked it. A few of you mentioned Arban's pages 20-56, and I started working on that. It's been great so far, and I've really enjoyed the work. I also started on Colin's Advanced Lip Flexibilities. My teacher had me read the entire text on embouchure through twice before I touched my horn. I still need a lot of work, but it's been an immense help in playing up the staff with relative ease. Two things really stood out to me about that text: 1. Making sure you have enough lip in the mouthpiece to get comfortable vibration rather than a predetermined formula of putting the mouthpiece half way on the lip, or 1/3 of the lip or whatever 2. Using the back of the tongue to regulate air flow/speed that facilitates playing the higher register. I don't ever remember hearing that about the tongue prior to reading Colin's. Is that just something every trumpet player should know, or is that a tactic specific to his method? My understanding, after buzzing my mouthpiece in front of a mirror over the last week and a half is that it's just a knack that has to be acquired by practice. I'd really like to hear some feedback on Colin's book and methods - good, bad or indifferent.