Octave Unisons (Pairs & Trios) - The two octave diatonic superbass is divided into its octave unison pitches having an upper or lower octave counterpart. 

• Row 1: [C1-C2] [C2-C3] [C1-C2-C3]

• Row 2: [D1-D2]

• Row 3: [E1-E2]

• Row 4: [F1-F2]

• Row 5: [G1-G2]

• Row 6: [A1-A2] [A0*-A1] [A0*-A1-A2]

• Row 7: [B1-B2]

*Note: The A0 bass tone bar is an experimental exploration pitch into the Sub-Contra Bass range.  This pitch represents the lowest A on the piano at 27.5Hz.