The Count of Tuscany indeed! I know some of that, but need to revisit. I'm afraid to try TGP, I might have to master a few easier songs to build up my skill level.
I don't have the chops to pull off Petrucci solos at this time, so I'll tackle the Rhythm sections which is like taking a college course in itself.
I've been playing mostly originals throughout my guitar journey, but I think it will help me tremendously to learn some DT stuff to help me think outside the box and have a better bag of tricks to work with. I find this inspirational, and listening to others on this forum helps too. Thanks for the suggestions.