According to Terry Jacks, a young David Foster played a bit of piano and did some engineering on this song, his specific contributions being the piano arpeggio after the "flowers everywhere" line, and doubling the bass after the "Goodbye papa, please pray for me" line.
Foster, a fellow Canadian, has contributed to numerous hits as a songwriter, producer and musician. A sampling of his credits:
- Producing the All-4-One "I Swear
- Writing and recording the original version of "Mornin'
- Co-writing the Chicago hit "You're the Inspiration
David Lanz, a pianist known for his composition "Cristofori's Dream," claims that he, not Foster, made those contributions to "Seasons in the Sun."
"He describes exactly what I played on 'Seasons in the Sun,' but says David Foster played this part," Lanz told Songfacts. "David was also living in Vancouver at the time, and he was putting together Skylark and also working in Skylark with two members of my previous Mercury Records band, Brahman: Duris Maxwell, drummer, and keyboardist, Robbie King, who played organ on 'Seasons in the Sun.' David was also coming round my apartment at the time looking for songs for Skylark, so yeah, we were all in the same place at the same time, but it just sounds like Terry mixed the two of us up.
David and I were both up-and-coming pianists at the time, and during the session I played on 'Seasons in the Sun,' Terry also had me record piano on one of my songs, which he rewrote a bit, 'Fire on the Skyline,' for the Seasons in the Sun
He had me use a pseudo writers name (Franklin Wesley) to avoid problems with Mercury Records. That track and another of my songs recorded for his wife Susan, were published on his Gone Fishing Music publishing company."