Leo Burnett Chicago and music company Sizzer Amsterdam have released a behind-the-scenes documentary on the unusual, ethereal music Thomas Bloch provided for the agency’s recent Re/Max ad, “Dream With Your Eyes Open.”

To create his music Bloch relies on a series of unorthodox instruments, including the glass harmonica, christal baschet, and ondes martenot (most notably played by Johnny Greenwood of Radiohead). Bloch has worked as a musician, composer and producer with artists like Daft Punk, Gorillaz, and Tom Waits. In the mini-documentary Leo Burnett explores Bloch’s studio as Bloch explains the “infinite possibilities” of his instruments. Bloch’s music really brought the surreal “Dream With Your Eyes Open” spot together and the folks at Leo Burnett were clearly fascinated by the collaboration with Bloch and wanted to explore his world further.

“We wanted to create cinematic music with a contemporary, artful feel that would guide the emotional transitions between the gorgeous dream sequence, nightmarish crescendo and ultimately bring the resolution to reality,” said Chris Clark, senior music producer at Leo Burnett.

Stick around for credits and the Re/Max “Dream With Your Eyes Open” spot after the jump. Read more