The fourth of five programmes SARAH WALKER (mezzo-soprano) NASH ENSEMBLE conducted by LIONEL FRIEND Boulez Memoriale ( ... explosante-fixe ... Originel) Roussel Trio for flute, viola and cello Delage Quatre poemes hindous Ravel Trois poemes de Stephane MaUarme; Piano Trio in A minor (Given on 2 December in the Wigmore Hall, London)