X if for Xanadu. Not the disco version, the Rush version. It's not their greatest work, and I didn't even know about it until a few weeks ago when I sat in a frenzy, furiously Googling X-bands and X-songs. Really not much to work with. Last year's movie theme was so much easier.
Now YYZ, on the other hand....That I'm more familiar with. YYZ is a fast jamming, tight instrumental groove. Musically, it starts off with Morse code rhythm for the letters Y-Y-Z (hence the name), bouncing between two notes in an augmented fourth (or diminished fifth, depending on your perspective), a rarely-used musical interval between the perfect fourth and perfect fifth.
As a bassist, I am required to like Rush. I took an oath when I first started playing. Geddy Lee's chops are awesome, and the respect-o-meter goes off the charts given the fact that he also sings while playing bass. Now some people may not like his voice, but I do. It's another one of those unique tones that you can identify immediately.
Neal Peart is a legendary drummer. Not many have the clout behind the set that he has earned. Speed and precision, off-time signatures, and he also writes all the band's lyrics. Yeah, you could say he's talented.
Alex Lifeson rounds out the power trio on guitar. He adds harmony yo the rhythms and melodies created by his counter-parts.
So here's YYZ for you. Turn it up!