Re: Custom music notation?

[Pashkuli Keyboard]

***  Unsatisfied criteria  ***
Criteria 8
The notation possesses a fully proportional pitch coordinate, where each of the twelve common pitches is spaced in a graphic manner, so that progressively larger pitch intervals have progressively larger spacing on the coordinate.
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This I questioned (as "it it necessary!?" from the illustration above) to be somehow irrelevant requirement if there are going to be 12 distinctive noteheads for the 12 tones.