"The Way" by Fastball was inspired by the story of an elderly couple from Texas who drove to a nearby family reunion and kept going. Fastball's bass player imagined them taking off and having fun like they were young. The story didn't end well: the couple was later found dead after they crashed in a canyon.
If counterpoint and polyrhythms are your thing, you might love these guys. Even by Progressive Rock standards, they were one of the most intricate bands of the '70s. Then their lead singer gave us Bon Jovi.