Carol Kaye recalls Wilson playing the musicians this recording in order to give the musicians a feel for the song.
The Versatone was used by well-known bassists such as Jack Casady and Carol Kaye.
Amongst the musicians were Rene Hall, Carol Kaye, and Earl Palmer.
Psychedelic rock autoharp was then-unknown, and at the time (with the notable exception of Carol Kaye), there were very few women playing bass guitar.
According to Carol Kaye, "Arranger Billy Strange believed in using the two basses together.
Carol Kaye: electric bass (tracks 2, 4, 7, 9 and 11)
Carol Kaye is one of the most recorded musicians in history, with perhaps 10,000 sessions.
Carol Kaye - electric bass (tracks 1, 2, 4, 5 & 7)
Carol Kaye: bass guitar (track 1)
Russ Morgan and His Orchestra (vocal by Carol Kaye) (1941)