Iirc, it was in the studio during the album sessions, as Berry had been hired as Crosby's personal tech/roadie.
― an icon of a worried-looking, long-haired, bespectacled man (C. Grisso/McCain), Saturday, 16 December 2023 14:48 (four months ago) link
it's all in a short paragraph here btw
― StanM, Saturday, 16 December 2023 19:45 (four months ago) link