Well, heck, Stewie, there are all sorts of strange instrument sounds on the recording, and I can't identify many of them. The CD does identify the song as a solo recording by Mimi - it does not say when the recording was made or whether Richard was involved in the recording. Here's what it says about the album:

Originally released in 1968, Memories is a grab-bag of outtakes from earlier sessions, two recordings from the Newport tapes, and two songs from an album Richard had been producing for his sister-in-law.

Thanks for being a stickler for detail and precision - it brought out some interesting information.
-Joe Offer-