After a day of that piece
(i) I found it difficult to always decide whether the note was touching / not touching etc as someone else said. Sometimes the black / white differential helped there though. Other than that reading the notes wasn't a problem.
The only notes that dont 'touch' also have a centre spot (B and F) so they are not confused with the notes a semitone away, C and E. And the note colour
always gives you the key colour. Im not sure you understand it when you say sometimes it helps.
But this is all good. I want to ensure my explanations are not misinterpreted. I know you got that the line notes are Ab (the black line note) and D (the white line note). The notes touching above the D line are E (white) and Eb (black). Similarly C and C# below.
The notes above and below the Ab line are similarly logical - the whites above and below are A and G, and the blacks Bb amd F#.
That only leaves 2 notes that dont touch a line - the white keys B and F with spots.
Its like the Express staff represents an octave from Ab to Ab with the white keys ABCDEFG in between. The halfway point must be D. And the quarter points are B in the lower half and F in the upper.
(ii) I felt like I didn't know what I was playing, even though I was hitting the right notes. Especially with the chromatics / accidentals in there. Aside from you saying what key it was higher in the thread I wouldn't have known.
This is interesting, and I know what you mean. It is as though the music isnt fully defined unless you know how it is
written in TN terms - its key signature and the enharmonic spelling of each note. But when you
listen to a piece or watch someone play,
without seeing the score, isnt the music just as real? Its a product of TN convention that we have to know whether the black note we just played perfectly accurately, is G# or Ab. This is because to verbalise the note, we have no option but to choose one of its two (or more) names. Is it Ab or G# when I strike the middle of the 3 black keys? Well, it is whatever I think of it as. I can say from experience that this need to define the 'right name' for each black key (which slows down the reading) gradually goes, and you start to find a freedom in just playing this or that black key without the encumbrance of TN theory.
However, I also noticed that after a while, the ES notation starts to tell you its TN key. You begin noticing certain black notes occurring regularly, and then you get: aha, its a key signature of 2 flats, or you see the shape of the chord - thats B major with the WBB note pattern ...
The unfamiliarity you feel, I also felt, and it is to be expected; but it didnt last all that long for me - not as long as with the viola clef - I remember that the feeling of playing in the dark lasted years with that clef!
If you could just keep it up for a whole week instead of one day, and let me know whether these feelings change, it would be very helpful. And if its technically too hard for you, just practice separate hands. Concentrate on good practice methods, and try to relax about the key-naming problem!
Thanks for the report so far.
And if I come up with a way to magically transform any person into Horowitz overnight, you'll be the first to know!
i think your new notation is very smart! i think it is much more easier than the traditional. pedagogically speaking, it is way way better than the TN.

Thanks!
Look, I do realise that to take over from TN is a big ask. I am more interested in the idea that software will make it possible for individual notations to have followings without the problem of music being unavailable. Klavar already has a sizeable following in Holland with over 200,000 pieces available apparently.
I dont agree though that the notation gives insight into the compositional style; I think to the contrary. watching the piece being played on the keyboard tells more it - Liszt and Chopin use 'pianistic' figurations that fall under the hand - I dont think that this shows up in the traditional notation of the music. And I dont think learning the soprano clef to play Bach in the stave he originally used would make any difference to the stylistic correctness of playing.
If I get organised I will post a recording of all the 2 part inventions, which I have learnt from ES, and let you judge its musical value. I think Bachs genius still comes through loud and clear (in the music, not necessarily the performance!).
Thanks to all who have viewed this thread.
JohnK