The Nash Ensemble of London celebrates its 50th anniversary during the 2015/16 season. On its latest recording, the group offers a program of original chamber works and arrangements by American composers. Included are rarely heard pieces by Bernard Herrmann and Franz Waxman, who are best known for their music for films. Center stage is Gershwin’s Song-book, arranged by the composer for solo piano in order to present the songs ‘as George Gershwin plays them himself.’