Agree 100% with the functional points. One additional responsibility that arises from time to time is to handle disturbances during performances. Having someone

Agree 100% with the functional points. One additional responsibility that arises from time to time is to handle disturbances during performances. Having someone able to speak eloquently to the audience in such circumstances (a/v issues, noisy individuals, etc) can be the difference between an otherwise great performance and a very awkward musical experience.