Omar Aam, in addition to linking music with real, complex and quaternion numbers, also illustrates the 12 rhombic faces (the collapsed octahedron of the 24-cell) inside a rhombic dodecahedron...
(Note: The accounting can be related to Einstein's 24 tensor vector calculus).
Omar Aam further postulates that the mathematical structure of music may be related to octonians:
The 7 keys do not add up trivially into the octonian rules...another problem...the octave is just a subset of the 12-tone scale. The octonian being embedded in a larger geometrical structure, (a) structure related to the 24-cell. The 12 structure is just the background fundament from which the harmonic balance of the octonian stands out.
... The octonian has a 3 + 4, or a 3 + 1 + 3 structure. We should expect to pop up a lot. The first appearance is the white keys (piano)- C, D, E + F, G, A, B. From the 7 imaginaries...we see the 3 + 1 + 3 structure- GAB mirrors CDE and F is an extraordinary number. The keys corresponding to CFG are considered base harmonics, G is called Dominant because it "dominates over F". The reason: Harmonically, GAB...looks and sounds...like CDE.
Finally we see a 3 + 1 + 3 structure if we play triad chords...throughout the octave:
CEG, DFA, EGB, FAC, GBD, ACE and BDF. (See Rameau, the French musician).
These make up the 3 Major, 3 minor chords and 1 diminished.
7 white keys + 5 black keys can be called the 7 + 5 structure.
(Note: Is this the 7/5 ratio found elsewhere?).
52.3 Collected Frequencies of Atoms
© Copyright. Robert Grace. 1999
52.2 The 12 Structure
(Note: What needs to be done here is to compare the 7 half-tone mirror image to Yang's statement, "If one performs a mirror reflection "and" converts all matter into antimatter"...the true mirror reflection process).