QUOTE(river @ Sep 1 2009, 03:44 AM)
if you want to continue learning yourself (with a teacher), the next step would be diplomas, which for AB are: DipABRSM (diploma), LRSM (licentiate), and FRSM (fellowship). you can take these for performance (which is closest to the grade exams), teaching, or "direction" (which covers running an orchestra or similar). other boards have their own equivalents, e.g. Trinity Guildhall offers ATCL, LTCL and FTCL.
i don't know AMus; are you thinking of BMus (Bachelor of Music)? that's a four-year undergrad (bachelor) degree, which you would get after studying music at a university or conservatoire. what a BMus actually entails can vary widely depending on what you choose to study, and where you study it.
alternatively, after completing grade 8 violin, you could start on grade 1 flute ;-)
Oh ok, i've got it now