Breath control

David,

I am working on Ex. 1.8 in Solo Study 2. I run out of air at about the end of the 4th bar. Is this a function of me just needing to build up lung capacity or is it more of a function of me also trying to get some air through my nose to make it through the 4th measure with the lick? I have also been trying to play softer to use less air. That seems to help a little. Thanks.