A lot of the tracks have to do with what both Waters and Gilmour went through as children, as they both lost their fathers to World War II. David Gilmour got writing credit on a bunch of the tracks as well. And given the amount of work that both Waters and Gilmore put into the album, it’s not really right to say that it was a solo project. Not even to mention what Nick Mason put into it. If you wanna cut out Richard Wright’s contributions, considering that he got fired during this album’s production, that would be fair. 
A lot of the tracks have to do with what both Waters and Gilmour went through as children, as they both lost their fathers to World War II. David Gilmour got writing credit on a bunch of the tracks as well. And given the amount of work that both Waters and Gilmore put into the album, it’s not really right to say that it was a solo project. Not even to mention what Nick Mason put into it. If you wanna cut out Richard Wright’s contributions, considering that he got fired during this album’s production, that would be fair.