...With Accompaniment of a Second Violin Downloads: jacques_dont_twenty_progressive_exercises.pdf (format PDF / 8 MB)Source(s): Open Library (public domain) Studies & exercises Dont Sheet music Downloadable sheet music Printer-friendly version Comments Havive been practising op 37. Havive been practising op 37...interesting to come across Op. 38! Yes, I put these up here Yes, I put these up here precisely because they were so unfamiliar to me. It's nice to encounter useful technical exercises that include a second part, for variety if nothing else!