I was thinking recently (always a dangerous thing!) about albums by different artists that are related by some sort of synchronicity, several examples spring immediately to mind....
Sgt. Pepper's Lonely Hearts Club Band - The Beatles
Piper at the Gates of Dawn - Pink Floyd
Both the above were recorded at the same time in Abbey Road studios in early 1967 and undoubtedly affected each other, Floyd members popping into some Beatles sessions and McCartney checking out the Floyd between takes.
Stackridge - Stackridge
Fireball - Deep Purple
Both these albums were recorded at De Lane Lea studios in April/May 1971 with a very busy Martin Birch engineering both sessions (when did he sleep??), two very different but equally classic seventies albums, connected in time and place of birth.
The Lamb Lies Down on Broadway - Genesis
Taking Tiger Mountain (By Strategy) - Eno
While Genesis were struggling to complete the mammoth 'Lamb' in Island studios in Basing Street, London, Eno was next door with Phil Manzanera working on his second solo outing. Peter Gabriel coerced him into contributing his inimitable skills at sound manipualation to the nescent mixes of the 'Lamb', to incredible effect (the 'Enossification' process!) while Phil lent his considerable percussive skills to Eno's project in return.
Anyone know of any more 'sister' albums that were connected in time and space this way?