Is This What You Want? add backing vocals to "Dear Prudence" in late August; he had also joined the backing chorus for "Hey Jude" earlier that month. The songs recorded included "Sour Milk Sea" and "The Eagle Laughs at You", for the A- and B-side of Lomax's debut single on Apple, and "You've Got Me Thinking". Among the guest musicians on the London sessions, much of which would go unused, were Eric Clapton, Ringo Starr, Nicky Hopkins, Klaus Voormann and Paul McCartney. Other participants included drummers Bishop O'Brien and Pete Clark; the former was part of Apple artist James Taylor's backing group, while Clark was
What Child Is This? recovering. During this time, he read the Bible comprehensively and was inspired to author hymns like "Alleluia! Sing to Jesus!" and "As with Gladness Men of Old". The precise time in 1865 when he wrote the poem "The Manger Throne" is disputed. While the "St. Petersburg Times" details how Dix penned the work after reading the Gospel for Epiphany that year (Matthew 2:1–12) recounting the journey of the Biblical Magi; "Singer's Library of Song: Medium Voice" contends that it was actually authored during the Christmas of 1865. Although written in 1865, "What Child Is This?" was only first published six