Complex sentence: Giya Kancheli's work Styx written for solo viola, chorus and orchestra is a farewell to his friends Avet Terterian and Alfred Schnittke, whose names are sung by the choir at certain points.
Split into simpler sentences: Giya Kancheli's work Styx is written for solo viola, chorus and orchestra. It is a farewell to his friends Avet Terterian and Alfred Schnittke, whose names are sung by the choir at certain points.