As an example of my work to benefit the young violist, my transposition and publication of Rieding’s Violin Concerto in B minor for viola has been downloaded 2000+ times since posting it on IMSLP in June 2012.  You may get it below or at IMSLP   The Seitz 2nd concerto in my transposition for viola may be found below and at IMSLP  This page has music for viola alone or in multiples, and viola with keyboard, which may include continuo cello. [NB:  Each newly added piece is entered at the top of the list. ]