Id love to go to dartington!!! Its sounds awesome.....I seriously doubt I will go though.
I think you are well and truly beyond grade 8! After grade 8 there is dipabrsm, lrsm, then frsm. Id guess you are around lrsm ( a very good lrsm),maybe frsm. I had a look at your repertoire on your site and it seems to be around that level, you could look up the syllabus if on the abrsm website if you want...
its
www.abrsm.ac.uk Click on exams, then click on diplomas (on the left), then click diploma syllabus from 2005, then click music performance, repertoire lists.
Someone else might be able to give a better idea, im not the best at judging this kinda thing.....
Of course there are other exam boards that do diplomas, but the standard is more or less the same (or should be) anyway.....someone else might put up links to those.....
by the way...I heard a recording on your website...you sound really talented!!
I think you should go to dartington summer school.
Topic: grades???