And here I am still using my old school vocoder, The Vocalist by Digitech. Play the parts in on the keyboard and sing into the mic plugged into it at the right time. When I used it live I would set up one SM58 from my right and another from the front angled toward each other and when the tracks on channel 7 played the box sang the harmony just like it was supposed to. Live play was different from studio, obviously, because it was real time and I couldn't always play the keyboard that was controlling it.

I have played with the new breed that follows the guitar and they are extremely cool.