No matter what people come up with and who the target audience is, there needs to be a good bridge between the traditional and the new. Staff or not, great for beginners or not, this will only fail because of the total lack of sheet music and other materials with nothing in sight to automate the translation of even a limited subset of music and materials.

(Of course, caveat, I've been playing piano for 20+ years as a hobby. Maybe the ties to the traditional are really not a big deal.)

I certainly hope that in the near future, digital transcriptions are easy enough to come by that you could effectively just change the font from one notation to another.

I know there are a lot of judgement calls in typesetting music, but that's true of text too, and we have some pretty good algorithms for doing so these days.

All that said, I have a lot of reservations about this particular notation, but I think there's certainly room for improvement even inside the current system. Letting the back catalog of work hold notation back isn't healthy.

The whole point of any new, better musical notation is avoiding the need to deeply understand the current traditional notation.

It is enough if machines can translate the existing sheet music to the new system.

> target audience

This is a very valid point.

Certainly the learning process for children can be improved a lot. Really, a lot. But I think it is important to integrate it with the actual notation from the beginning, as otherwise you will hit a wall when you want to play a bigger variety of music that's only available in that format.

I don’t think acquiring a sense of key signature is a dispensable part of the music learning experience, unless you plan to stick to twelve tone music.