A performance in which the volume of the performer is controlled by a smile, if the smile is not big enough smile prompts play and the volume of the performances turns off.

To do this I need to

• have a bank of smile samples and perhaps a backing track
• trigger random samples based on a beat
• increase the tempo of the beat the longer there is no smile
• For the transition – have a point where it switches from smile (performer sound) to no smile (smile samples) and then a small fade between total smile and performer