I think that's great, but...
Art should change the world. Most people don't understand spectral thinking, so they cannot see that it is not an absolute of either being black legions or being coldplay. Within an audience, art should change the world by changing the ideas with which we approach the world.
I don't see the point in mailing tapes to friends. If you don't want your music heard, play it alone, or gather those friends and play it to each other. But to be part of a genre is to try to influence that genre, and although it's a manlier job to try to influence the world, it's just as important now as any time to think critically about our direction as a species.
Kurt Vonnegut compares artists to canaries in a cold mine, meaning that when they stop singing the end is near. I prefer to think of artists as canaries who change their song to point out the obvious but subtle that most people will overlook.