Conversation so far:
Is Her Majesty the name of a Beatles album?
Her Majesty is a song by the English rock band The Beatles from their 1969 album Abbey Road.
Did the rest of The Beatles like Her Majesty?
McCartney disliked the way the medley sounded when it included Her Majesty, so he asked for it to be cut.
What was the musical effect that The Beatles liked on Her Majesty
Mastering engineer Malcolm Davies cut a playback lacquer of the whole sequence of the master tape, including Her Majesty. The Beatles liked this effect and included it on the album.
How was The Beatles' Her Majesty received by the public?

Question: Did any other musicians besides The Beatles contribute to Her Majesty?
Self-contained rewrite: Did any other musicians besides The Beatles contribute to Her Majesty?