SUM OF R (SUI/FIN) Avant-garde metal, Drone rock, Psychedelic kraut doom The current incarnation of the band already sees Reto Mäder (Ural...

What was planned as a special Sum Of R Roadburn gig with guest vocalist in 2020 first withered abruptly because of the pandemic and...

Before the year comes to an end, we will play two special concerts related to our album pre-production time in Berlin: - 6.12. Amsterdam,...

It's our pleasure to confim our upcoming Roadburn adventure for next April 2020. To make it even more adventurous this time, we will be...

One year ago Sum Of R had the pleasure to play at the boundary breaking Roadburn festival. Here is a live video from Cul de Sac,...