The sample used is of myself doing some random scat singing. The instrument used is the provided BlowBotl instrument. The piece is titled "Call And Response" because the scatting and the bottle mimic each other throughout in terms of the algorithm used and the rate. It's a bit of a funny idea, because call and response is often done between someone scat singing and someone else playing an instrument. This is the same, but the instrument is not very expressive, leaving a call that is all over the place, and a response that is basically the same bottle sound again and again at the same tempo. It's a bit silly, really. Enjoy!