I'm also a musician (well not a professional one, but I hope to be)
Aspie traits that help me with music:
I have a very good ear - melody comes naturally to me
Attention to detail
Perfectionism - not giving up until I get it right
I love expressing myself creatively
being obsessed with music means I practice constantly and don't get sick of it
Traits that hinder:
Soicial anxiety and inablity to relate makes it very hard due to the social nature of the music industry
I don't like performing because I can't stand all the attention being on me
Not very good at taking critisism from others about music
hard for me to do 2 things at the same time - ie read music and play
When writing I find it hard to express feelings in words