Beatles-only song they played and had no words to sing?

"Flying" is the instrumental from "Magical Mystery Tour". "Blue Jay Way" was sung by George Harrison. Other Beatle Instrumentals were:

"Cry For A Shadow" - Anthology I
"12-Bar Blues" - Anthology II
George Martin filled the whole B-side of the "Yellow Submarine" album with soundtrack music (mostly composed by him)

I believe it is called "Blue Jay Way" on the Magical Mystery Tour Album