-
1. hexachordum durum: G, A, B♮, C, D, E
-
The six-note scale based upon G, containing B♮, called B durum.
-
2. hexachordum natural: C, D, E, F, G, A
-
The six-note scale based upon C, containing no B.
-
3. hexachordum molle: F, G, A, B♭, C
-
The six note scale based upon F, containing BB (B molle).