A. Vizzutti. "New Concepts for Trumpet". Alfred, 2004. ISBN 0-7390-3327-1.
Allen's intent is to provide more practice material when traditional
method books leave too large a gap. And to provide an assortment of
etudes, duets, and studies to make practice more pleasant.
I worked through several of the sections, but went back to VB1 and
VB2. Will revisit in a few months.