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.