Ummagumma was the album that had several innovative tracks. I liked Several_Species_of_Small_Furry_Animals_Gathered_Together_in_a_Cave_and_Grooving_with_a_Pict
and
the grand viziers garden.
Another great Floyd album.
“And the wind cried Mary!”
L
Great album. The live version of Astronomy Domine on this one is my favorite and I think was actually sang by Syd Barrett although he had been out of the band for over a year when Ummagumma was released.
For any Roger Waters fans check out Music From the Body. It was a sound track he did with Ron Geesin in 1970. Very innovative and obscure.