AND THIS IS MY BELOVED from Kismet Merrill, Leigh & Mantovani
This is the 1964 recording from the musical KISMET, (composed by Robert Wright and George Forrest, based on themes by Borodin), sung here by soprano Adele Leigh, tenor Kenneth McKellar, baritone Robert Merrill, and bass Ian Wallace, accompanied by Mantovani and His Orchestra.
This particular song is adapted from String Quartet No.2 in D major (3rd movement - Nocturne) of Alexander Borodin (1833-1887).