The piano basically doesn't stop playing throughout this show*, keeping the rhythm going. That's Keyboard 1. Keyboard 2 has all the synth bells and whistles, and I'm just as happy not to be concerned with any of that programmed stuff this time. My turn at that comes up again with Addams Family next month.
*and I can feel it right now, in my shoulders. Been hunched over and tensed up too much reading the music. Time to sit back and relax, and it'll be fine once I know it all.