"Finally we took over the studio" John Lennon told Rolling Stone in 1970.
It's been 50 years since the release of RUBBER SOUL. Though not my favorite Beatles album, it is a great, great record in and of itself and was really where they started to flex their muscle in the studio and set up the even greater works to follow.
One thing I've always felt about SOUL - While the hits (Drive My Car, Michelle, In My Life) are all classics, the deep cuts are equally brilliant - Wait, The Word, Run For Your Life. Two of George Harrison's best - Think For Yourself and If I Needed Someone (Interesting discussion on the latter in Roger McGuinn's twitter feed the other day).
In particular, I have always liked Wait - Lennon and McCartney singing different parts of the same song. One aspect of The Beatles that I really liked an felt was underused on later records (which is understandable since it was all in their own worlds at that point).
Also interesting to note, and I have to give credit to Rolling Stone's appraisal of RUBBER SOUL for this observation, htttp://www.rollingstone.com/music/news/50-years-of-rubber-soul-how-the-beatles-invented-the-future-of-pop-20151203 ,a lot of the female protagonists in the lyrics of the songs have a feminist bent - Female driver, woman unavailable to see male because she's busy with her own life, woman has to go work and leaves male asleep in the bath.