Which sentence does not use parallel structure correctly?
If I were a musician, I'd want either to play keyboard like Stevie Wonder or to play guitar like Leo Kottke.
If I were a musician, either I'd want to play keyboard like Stevie Wonder or I'd want to play guitar like Leo Kottke.
If I were a musician, I'd want to play either keyboard like Stevie Wonder or guitar like Leo Kottke.
If I were a musician, I'd want to either play keyboard like Stevie Wonder or guitar like Leo Kottke.