Drop the base.
You decide to go for theatrics. Making a jaw-dropping scene is the kind of thing Rhythmancers would do, as chronicled in old tales where the greatest would drop the world in music. Cities will fall. Mountains will drop and seas will rise at their beck and call.
You want to be one of them. But dropping some building foundations would be fine...
Build up some more. You'll want to blow their minds when you drop it.
...but you, always the showman, want to build the
Crescendo. It is a great technique taught to every musician; the ability of gradual but bombastic explosion of wonderful aural harmonies combining into a blast of ecstacy and...
You're getting carried away.
+1. Then lower the music a bit, to let them simmer... then build it up again with no warning.
Also, bite somebody's arm if they come near, and stare frantically at the turntable, to let them know you are nuts
This is the part where you drop the bass. You don't. People look around in confusion, but sense another gradual build-up so they dance away. You immediately switch to Skrillex's
Scary Monsters and Nice Sprites track spliced over a hundred times to build your own Novation Launchpad Dubstep loop, catching them unawares.
Your gaze turns rabid as you near the end of your performance. And then...
The world quakes as your crescendo is complete. A fortessimo of clanging steel framework echoes around the hall as entire walkways of steel fall and creak into the now-panicked population.
Fans become bewildered as to what happened; they climb up but you bite them. And you growl. This would have been alright if you didn't growl like a fucking violin being scraped by a handsaw. Everyone is scared. Congratulations. You did a fine job as a Rhythmancer, although you're quite sure some kind of class action lawsuit would be imposed onto you and the gig. A pitiable side effect. You dance your reservations away and continue to play.
But you need to plan what to do. So...