Conversation so far:
Who handled the mixing for the song Hey Jude?
Scott, Martin and the Beatles mixed the finished recording at Abbey Road.
When was Hey Jude mixed?
A stereo mix of Hey Jude was then completed on 2 August and the mono version on 8 August.
Who is the Scott that helped mix Hey Jude?
Ken Scott (born 20 April 1947) is a British record producer and engineer known for being one of the five main engineers for the Beatles.

Question: How did the Beatles respond to the final mix of the song?
Self-contained rewrite: How did the Beatles respond to the final mix of their song Hey Jude?