it was a beat. then all of a sudden there's a face to it. ♪ block rocking beats ♪ the chemical brothers come up. >> this is very much the recycling age. is this music recycled? >> everything is secondhand. you take things from different places and create something new in it. ♪ >> all of this stuff was going on at the same time. massive attack, moby, so you're seeing what we called electronica which is edm, which is techno, really starting to kind of take hold beyond dance clubs. ♪ all these artists end up laying the seeds for what would become a pretty huge revolution of music. ♪ ♪ around the world ♪ >> everybody's talking about them, and they're headed to america. it started with the beatles and