Exercises with 3-octave major and minor scales with arpeggios, scales in double-stops (2nds, 3rds, 4ths, 5ths, 6ths, 7ths, 8vas), harmonics, glissandos, triple and quadruple-stops, and chromatic scales https://music4viola.info/work-info/2/Martinson%20K./scale-book-viola-edition-for-viola