Over the past couple of years, Boiler Room has been pushing ever further into that anything-but-grey area between classical, jazz, ambient and even less defined areas of experimental music. So we're impossibly excited to be broadcasting a show by two of the absolute dons of this hazy zone, Jon Hassell and Christian Fennesz. And just in case you're in any way unfamiliar with the former of the two, we asked Andy Thomas to remind us exactly why the trumpeter, producer, arranger and intrepid explorer of interzones has been so influential through the second half of the 20th century and into the current one.

Purchase discount tickets here.