I don't think it's bizarre. If I'm a tailor and create a new suit, I can transfer ownership to someone else. If I create music then I should have a similar right to permanently transfer copyright ownership. To me that seems 'natural', and moreover it makes the copyright more valuable, providing a greater incentive to produce the music.
It's useless to try to compare physical goods to creative works. A tailor can't retain a suit while allowing me to have it. A musician can give you a song, but still have that song. These concepts of ownership just aren't compatible.
