The Beatles released their last album, Let It Be, on this date in 1970. The tracks were originally recorded 14 months earlier, well before Abbey Road.
Let It Be was the only Beatles album to receive negative, even hostile reviews. The group was dissolving and the tension affected the music. Then in post-production, Phil Spector added his “wall-of-sound” treatment.
Of course, a poor Beatles album is better than most other bands best work.
In 2003, the album was re-released as Let It Be…Naked with Spector’s additions deleted. Here’s the whole story from Stephen Thomas Erlewine of the All Music Guide.