If you're hired, you don't care about having a perfect pitch. Just do some magic for the kids, the parents, the drunk and even the pubescent teenagers who dress way too slutty. It really dumbs down your magic. Down to the basic level of communication. And what fun it is. No perfectly arranged patter. No subtle foreshadowing and very little words, because it's too fucking loud.
You repertoire gets through an instant casting. Losers go, winners stay. No more complex card routine. Triumph is reduced to the actual effect of the cards "rightening themselves" without bothering to have a selection. Show a card, then change it... then have a card picked, signed and immediately produce it from the impossible location. Attentions spans are a rare thing. Then move on to the coins quickly. Make them vanish and reappear and then go into the cups and balls. Did I say cups and balls? I meant: One Cup Routine. Yeah... ball gone, ball back, ball gone, ball back, ball gone, final load, final load, final load... that's what people want.
Wish them a happy fucking day and that they should party hard.