As someone who's been there, though, you know you're authoring your Encore as you play through the game.

Y'all want a generic, randomized Encore just so you can play it at will? With arbitrary values?

Practice the right orbit. Routinely make it your eighth song request. Don't start a MB if you're close on a song change (5 or more lit requests). Use MBs to push right through fresh songs. The first time you get Encore, basically everything you do probably has to be in service to the ultimate goal. (That's right, you might have to radically adjust your whole play style! Sounds pretty healthy and engaging!) After you are accustomed to playing with a progress-before-all-else mindset, and you've been there, maybe you can throw in a little flavor along the way. Score some points as you go.

A halfway mini-wiz isn't gonna get you any closer to Encore, it's just an opportunity to lose a ball. Luckily there are ready means of introducing additional balls onto the playing surface at any time if you desire to pursue them.

I guess personally, I would press start unlimited times trying to get to Nublar before I would just warp there. Haven't played it yet.