Guitar,Instrumental Duet,Viola - Level 3 - Digital Download SKU: A0.1147407 By Alex Tinlin. By Ernst Gottlieb Baron. Arranged by Alex Tinlin. Baroque,Chamber,Classical. 16 pages. Alex Tinlin #747615. Published by Alex Tinlin (A0.1147407). My arrangement for Viola and Standard 6-string Guitar of a Sonata originally for Flute and Lute by the renowned lutenist Ernst Gottlieb Baron.