Pete Estabrook speaks about tools for piercing the upper register: alternate fingerings 

This video is not intended to be comprehensive on this subject.
More will follow in this series
"Reflections Vol. 1" CDs are available at a discount for subscribers as well:
peteestabrook....
click on the "buy from artist" link and send $15.
music.santaros...
www.stanroy.co...
Thanks for your support and interest.