This recording includes two monumental works by the Swedish modernist master Sven-Erik Bäck. “Vid havets yttersta gräns” (At the Outermost Edge of the Sea), to words by Östen Sjöstrand, was commissioned by the Swedish Radio for the official opening of its new concert hall, Berwaldhallen, in 1979. “Signos”, composed the following year, is dedicated to Paul Sacher and the Basel Percussion Ensemble, who also perform the work on this recording.