The Russian Art Progressive Folk Metal band Tumulus are to have two concerts in Bulgaria. On May 9th (Tuesday) the band will play in Sofia at O!Shipka club. Support will come from the Bulgarian band Granulom. On May 11th (Thursday), Tumulus will have a gig in Varna, at Zone 51 club, where the bands Catalepsia, Ablepsia and Eufobia will open for the Russian guests.