Sgt. Pepper's Lonely Hearts Club BandBeatles
Production and variation are great for their time. Musicality doesn't get stale moving from one song to another. A variety of genres and topics. After a few listens, it sounds like commentary on people, relationships and interpersonal searches in front of an audience. The song feels like it's being performed in front of an audience and then gets meta with a day in the life. This is just a very general knee jerk thought. Honestly wouldn't surprise me if there wasn't an over arching theme.