Ernst Krenek’s resumé reads like a pro forma template of Austro-Germany’s forgotten composers sent into exile by the political climate of the 1930s. Studying with Franz Schreker and a short-lived marriage to Mahler’s daughter Anna ensured a thorough grounding in heady Late Romantic expressionism, dabbling with atonality before embracing Hindemithian democratic craft and making a big splash in 1927 with Jonny Spielt Auf; a key example of Zeitoper.

Staged in over 100 European theatres, the pseudo-jazz inflected score and Jonny’s ethnicity would bring fame and notoriety but aroused the ire of the racial purifiers waiting to seize power. Krenek’s adoption of Schoenberg’s serial technique in the 1930s would seal his fate; his opera Karl V would be banned by the Nazis and he would be denounced as a “degenerate” so he decamped to Palm Springs, sheltering in academia for the rest of his life where he produced a steady stream of fine compositions that, apart from occasional performances in rebuilt Germany, were ignored.

His Reisebuch aus den Österreichischen Alpen song cycle of 1929 was a response to the previous year’s 100th anniversary of the death of Schubert. Spurred...