Elementor Page #1347 b d’ a’ d” ; a c’ g’ c” Antonio Vivaldi’s violin concerto RV 391 in B minor, op. 9 no. 12 (around 1720-1727), is written in the tuning b d’ a’ d”: The tuning a c’ g’ c” is used by De Tremais in his violin sonata no. 6, op. 4 (1740?).