Here's a preset I created for Dweezil Zappa and finally decided to share with the world. Find the download link below and read the notes on Axechange. Use Scene 1 to enter the basic pattern into the looper then noodle over the top with the simple or twiddly scenes. Dial in your sound of choice for scene 3 to hit the heavy chords. If you have an FC, use the Per Preset layout where I set these things up for you. You have all the tools here to learn to do a perfect recreation of the synth intro -- without using any synths!
https://axechange.fractalaudio.com/detail.php?preset=7509
https://axechange.fractalaudio.com/detail.php?preset=7509