Back in March, electronic music duo Grandbrothers—consisting of Erol Sarp and Lukas Vogel—released its gorgeous debut album, Dilation, on German imprint FILM.

Drawing on Erol’s Jazz pianist roots and Lukas’ background in constructing synthesizers, the pair perform on a remarkable, custom-built set up that utilizes the grand piano in astounding ways. It’s really something that needs to be seen to be believed and, luckily for us, it’s on full display in the new video for album cut “Arctica,” as the duo explains: “We use a system of self-built hammers that trigger all parts (metal, wood, strings) of the grand piano in order to create all the sounds you hear including percussions. On stage that looks like an open heart surgery on the grand piano with a lot of cables attached. We wanted to visualize that with the new video for Arctica.”

You can watch the video for “Arctica” in full below, along with a few more photo’s of the set up.