To clear up some confusion, it's 'Big Train' from Watt's Ball Hog or Tug-Boat record and 'The Red and the Black' from Blue Oyster Cult.
great lesson - it's been an elusive riff, as far as exact replication, but I think you've dissected in a way that makes it easier for me to understand. thanks!
really cool. checked out a few of your Z3 videos - the guitarist does a great job getting that Zappa tone! keep it up!
Thank you. I'll give it another go next weekend - with heat!