Original: His famous Decca Das Lied von der Erde with Kathleen Ferrier, Julius Patzak, and the Vienna Philharmonic was made in May, 1952, and he recorded it again in studio with the New York Philharmonic in 1960.
Simplified: Many years later, in 1952, Walter and the Vienna Philharmonic once again made a famous recording of Das Lied von der Erde with the singers Kathleen Ferrier and Julius Patzak.