From Darren Stevens: By later 1987 I formed the band Modern Romance and as a keyboardist and programmer. I hand-created many of the sounds used, and wrote the software used to control their live shows. One of the significant outcomes of working with Modern Romance was that I wrote the software UltraMIDI, later known as Slave Driver, to run the show.
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.