The Chris Whitney Project was formed for a single memorable performance: the millennium New Years Eve dance party at The Carnegie Community Center in East Vancouver. Highlights of the evening included a pumped up version of Elvis Costello's "Pump It Up", Gary Numan's "Cars" (with all keyboard parts done by electric guitar and a ton of effects) and an impromptu punk rock version of "Auld Lang Syne" at the end of the night.
For physical events that happen at a specific time. For example a concert, or dance performance. If there are multiple shows, you can still duplicate your event to cover them all.