Co-producer Albhy Galuten recalls "Spirits Having Flown" as being created primarily by Barry Gibb, Karl Richardson and himself putting in long days and nights at Criteria Studios. Blue Weaver recalls others being involved. Both agree that Robin Gibb was active behind the scenes in songwriting and offering feedback to the recording process, but Maurice Gibb contributed probably the least he did on any Bee Gees album. Not only was his alcoholism sapping his creativity, but he was having back pains finally diagnosed in 1980 as caused by a bad disk. He said that he would be doing bass work and without his knowledge, Barry and Robin would hire in someone else to play parts that he was supposed to be playing; however, he said that whilst he played fine, neither Barry nor Robin could rely on him.