I have a Fratelli Crosio study accordion with 3 rows on the right and on the left 2 rows of basses (16x2) and 3 rows of chords (M, m, and 7th)
I'm looking for a method with a diagram for the different possibilities of making the chords with the first and second row of basses (either at the top and bottom of the keyboard) we find the same basses in the first and second row at different levelsThanks in advance