I wouldn't go so far as to call them "brother" albums...but maybe it has something to do with how the concept is a little "looser" than some of the other albums like The Wall or The Final Cut. More like a themed album rather than a concept album.

That does NOT mean I don't enjoy Animals, though!

__________________
"And with these words I can see
Clear through the clouds that covered me
Just give it time then speak my name
Now we can hear ourselves again..."

WrightSatellite #1