>Applause for the effort but I doubt that this will become popular. Music notation has been a certain way for hundreds of years for musicians around the world – a notation with the universal legibility of mathematics.

This system is really compatible with the standard one though? It's essentially a visual skin.

Removing the middle line is kinda nice - I remember as a kid having trouble and counting lines a lot to figure out what not something was.

The sharp/flat notation seems pretty week though/visually unclear?

I'm not sold on the the numbers in the clef symbols - I don't find it so helpful, and don't have a very intuitive sense of what the number of the octaves are. Especially because the rest of the notation is quite visual/geometric, it's odd to see it resorting to adding numbers here (where the normal notation leaves them out unless the clefs are in non-standard octaves).

The current piano layout (seven white keys and five black keys) is pretty closely tied to traditional music notation (sharps and flats => black keys), so I'd guess sight-reading with this notation would be harder on current pianos.

In principle you could imagine a more regular piano layout that maps well to this more regular notation. In practice, attempts to do that have generally failed and it's hard to see how to make it work.

The irregular spacing of the current piano layout can be frustrating, but it fits under the fingers pretty well, and it's very useful to be able to identify notes at a glance.