BU2B

This is the B-side to "Caravan," the first single from Rush's 2011 album Clockwork Angels. The song is an additional studio track whose title stands for the lyric "brought up to believe". It was recorded the same day as "Caravan" on April 13, 2010 at Blackbird Studios in Nashville with producer Nick Raskulinecz.

Guitarist Alex Lifeson told Musicradar.com about his guitar solo: "At first we experimented with something more traditional, but it just sounded, I don't know… ordinary. So we decided to punctuate points in the solo section with a more screaming guitar presence. I think it worked."

Geddy Lee plays a theremin in the middle part of this song. The theremin was invented by a young Russian scientist named Leon Theremin in 1919 and was used to make spacey sounds in movies throughout the '50s. Clockwork Angels producer Nick Raskulinecz told MusicRadar they came across a theremin lying around in the studio, "So we took the theremin," he said, "plugged it into an amp, put some delay and a phaser on it, and he did a solo. I think he might have played one back in the '70s. His performance is cool. He did it once and it worked out great."