In this extremely rare recording from the early 1960s, German baritone Hermann Prey (1929-1998) performs "Erlkönig," penned in 1728 by Johann Wolfgang von Goethe and set to music in 1821 by Franz Schubert. The Swiss pianist and pedagogue Karl Engel (1923-2006) accompanies. I created this video from the cassette shown above, issued in 1974 on the Philips label, serial number 7314 010. The recording predates by at least ten years the manufacture of the cassette.