bar1-20 : A part, Hexachord = G - E
bar20-25 : B part, Hexachord = D - H, C - A
bar25-31 : C part, Hexachord = G - E
bar31-43 : D part, Hexachord = C- A, F - D, G- E
bar44-51 : E part, Hexachord = D - B
bar51-54 : F part, Hexachord = B - G, F - D
bar55-64 : G part, Hexachord = G - E, C - A, F - D