Trott's Melodious Double-Stops Book 1 for Violin (50327290) has been a landmark string exercise book for decades, selling thousands of copies a year. Now the same exercises have been insightfully transcribed for viola.
Title: Melodious Double Stops (Transcribed for Viola), By Trott, Josephine, Edited by Jane Daniel, Published by G. Schirmer, Inc., Item number: 50485187
This piece for unaccompanied viola solo transforms the gentle arches of Bach's theme into slowly soaring arpeggi of almost unending phrase lengths. Originally written for cello, it was premiered by Yo-Yo Ma in Boston in 1997 in memory of Robert Goldberg. This version for viola is edited by Melia Watras.
Title: Fancy on a Bach Air for Viola, By Corigliano, John, Published by G. Schirmer, Inc., Item number: 50486362