What is Reddit's opinion of O33 - Complete Method for Clarinet Op. 63 - Third Division?
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Baermann Vol. III, mainly part 1, 2, and 8 (scales, arpeggios, thirds respectively) https://www.amazon.com/Complete-Method-Clarinet-Third-Division/dp/0825802156/ref=pd_sbs_14_1/132-5553951-6589045?_encoding=UTF8&pd_rd_i=0825802156&pd_rd_r=a381344c-0bdf-4d9d-8888-e0821b136f74&pd_rd_w=PTP6D&pd_rd_wg=BWfne&pf_rd_...

Really, the only way to do it is to practice your scales and arpeggios! The Baermann scale book (division 3) is what almost every clarinet player uses. It has every way to play a scale that you could ever imagine.

When I have fast scales and arpeggios, I don't look at every note; I've practiced them enough to know what comes next. If there's a note in the passage that isn't in the normal scale/arpeggio, I circle it to make sure I actually look at that specific note.

Edit: [here's the Baermann on IMSLP](http://imslp.org/wiki/Vollst%C3%A4ndige_Clarinett_Schule,_Opp.63,_64_(Baermann,_Carl)! Again, division 3 is the one you're looking for. You can also buy your own, easier-to-read copy on Amazon. You'll most likely be playing out of that book for the rest of the time you play clarinet; I think it's worth it to spend a little on it!