S4
Cold Duck
No relation to the sparkling wine of the same name, Cold Duck is instead a series of nine biting improvisations by S4, an ad-hoc, all-star quartet of soprano saxophone innovators – one British, John Butcher, and the others Swiss: Urs Leimgruber, Hans Koch and Christian Kobi, the last of whom is also a member of the all-saxophone Konus Quartett, which interprets notated music. Designated by Roman numerals, Cold Duck’s tracks, lasting from barely one minute to more than 12, could be the auditory …