Sphere 

Sphere have been active for over two decades, during which time they’ve masterfully operated the brutal death metal machinery. When they released their debut album, Damned Souls Rituals, in 2007, they quickly made a name for themselves, e.g. perfroming at the cult music festival Metalmania in Katowice and selling over five thousand copies, which is quite the feat for the deathmetal underground. With time – and two more albums – the sound of the Warsaw band evolved, getting ever darker and ever heavier. Between 2015 and 2022, they were on a seven-year-long hiatus, but came back with the album Blood Era. The Polish band has toured with such heavyweights as Incantation, Left to Die, Cattle Decapitation, Obituary, and Cryptopsy.