Bands who play in clubs where alcohol is served may not leave the stage while performing.
Background information (if available):
Sec. 3-301. Live entertainment to remain on platform while performing.
The owner or proprietor of an establishment selling alcoholic beverages for on-premises consumption may permit in the establishment instrumental and/or vocal music or entertainment and/or radio and television entertainment whether such entertainment is provided by paid or voluntary live male or female entertainers or performers or by mechanical, electrical, electronic or other comparable device or equipment; provided, that all live entertainment as herein specified shall be performed on a platform or other exclusive area provided for such purpose, and no entertainer or performer whether male or female shall be permitted to leave such platform or area while entertaining or performing.