foursringburn - thank you for understanding about UK spelling. I'm sorry if you found the way I spell "capitalise" surprizing in any way.
As regards your other assertions in this thread, I must politely point out that what you are posting doesn't make a whole lot of sense.
The phrase "writing music" could be taken to mean composition or arranging of music, or, far more trivially, the act of putting dots on a stave on a piece of paper (or computer screen). To suggest that someone who can do the first but not the second is not a musician just demonstrates misunderstanding on your own behalf. Are you so confident in your own superiority that you think you can assert that someone like Buddy Rich wasn't really a musician and still expect to be taken seriously? Or - if we're talking about "writing" music in the non-trivial sense - Irving Berlin? I would hope that as a musician yourself, you'll understand this point.
I also think you're mistaken in assuming that anybody who's disagreed with you up to this point must be a non-reader. I learned to read music over 40 years ago and much of my work as a musician depends on it. I know that reading is an invaluable skill and it enables a musician to do things that non-readers are unable to do. But to say that being unable to read prevents you from being a musician at all, or that "writing" only counts if it's in standard notation, is just plain wrong. Such an assertion demonstrates either a lack of musical understanding or ill-informed prejudice.