Well I gave myself a 9 cause I can do all that stuff. I have two degrees in music and have sold arrangements to all kinds of groups from symphony orchestras, to cruise ships and production companies using MIDI backups.
I teach 7th grade computer based music arranging.
All that said.... formal music training is good for cutting through the BS and giving you the tools you need quickly. Its even better at giving you the paperwork to get gigs that some people think are important. Frankly, I've learned more about bass playing and a hell of a lot about music by playing in garage bands (real people in real garages). It's too involved to get into here, but the short story is that intelligent people who have had to figure it out for themselves (and are successful) will alway have something to teach a formally trained musician. It's a fascinating and informative study to listen to someone tell you how to learn music who doesn't read or know theory beyond what they've put together for their own playing.
well said.
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