Global Sounds on the Hill: Kurbasy, 7-9pm at Hill Center DC (921 Pennsylvania Avenue, SE ). Lviv, the eons-old Carpathian hub, holds Ukraine’s cultural core. Around this nucleus, spheres of tradition and innovation spin, collide and reform. The idea of culture as a cosmic living organism is central to Kurbasy, whose folk-based multimedia performances vibrate in tight vocal harmonies, resonant lyrics, culturally unique instruments, and phantasmagoric visual imagery. $15