Piano study, difficulty level, many things

[gupiano]

I have been studying the piano for four years but I have no idea if I am a beginner, an intermediate or a advanced student. How can we grade that? I think every single music is hard specially when you try to combine both hands, hands separated can be sometimes very easy. I also have tried to find many websites tips concerning to music difficulty but I can`t find it anywhere. I would like to find something like:

Beginner studies:
Ana Magdalena Bach

Intermediate studies:
Bach inventions

Advanced Studies:
Bach French Suites


Or something like
Bach inventions:
1 to 5 beginner
5 to 10 intermediate.

referencing many different composers, books, methods ecc.
Does anyone know where can I find that?


Thanks.

[vviola]

I only know of this list, which is rather extensive:

https://www.pianoworld.com/Uploads/files/Graded_Pieces_Sorted_By_Difficulty.PDF

8 being the hardest. I believe most people grade pieces this way. 6 might be "Intermediate", 7 "Advanced Intermediate", and 8 is "Advanced". I don't know who chose the grades for these pieces, most likely they are from various Graded Music Examination Boards, and for the most part they are accurate from what I've seen.

[vviola]

Actually, The Piano Handbook by Carl Humphries might be what you're looking for.

[vviola]

Sorry, I meant to say Music for the piano by James Friskin and Irwin Freundlich. Bad day for my memory!