As I mentioned in my original post, it's not Garageband itself I have a problem with. I agree, the software at large is not at all comparable to my Guitar Hero anecdote. Actually, many of the sounds in Garageband are
amazingly better than those on some of my multi-thousand dollar synths. This is particularly true with respect to the orchestral sounds in the Symphony Orchestra jampack.
The reason my students wouldn't dream of using loops is because they can play what they want for themselves. And if they can't, they learn how to. It's not a question of the musicianship of those who actually recorded the loops. Agreed, they are created by talented professionals. How do you think those talented professionals got to
be talented professionals? It sure wasn't from using loops. They dedicated themselves to hard work, and that is what I demand from my students. And they, happily, are more than willing and able to oblige. If you can't call your drummer at 3:00AM (and agreed, you probably shouldn't!),
play the drums yourself! Not on a live drumset, but by playing the drum sounds in Garageband directly on the keyboard. Not a drummer? Don't really have to be. You mentioned you have been playing for many years. I'm not sure what instrument you play (sorry if you mentioned that in a previous post, I didn't catch it). Whatever the instrument, years of experience should have you in a place where you can lay down a solid drum track, even if you do it one layer at a time.
Again, the point is, this magic thingy is really meant for people who can't play or write but would like to have some sort of tactile experience with making music. This, in and of itself, is not a bad thing. But every time some new technological advance in music gets taken out of context, the result is a measurable reduction in awareness and standards among the lay populace. And touting Magic Garageband as some legitimate means to write and perform music is very out of context.
Question: if it turned out some day you needed open heart surgery, who would you rather have operate on you?
A doctor who used shortcuts that were so incredibly short they practically yanked all the sweat and brainpower out of learning to operate? Someone who really had no gift for medicine but liked to perform "virtual surgery" on a computer?
Or, a doctor who attended years of medical school, demonstrated a supreme gift for medical knowledge and intuition, and had years of high-level professional experience in the operating room?
Maybe music isn't as serious as all that to some people, but it sure is to me, and to many other musicians I know.
Lastly, a quote. "To make a mistake is human and forgivable. To play without passion is not." --- Ludwig Van Beethoven
If anyone ever discovers something less passionate than "magic music maker," please do offer me warning.