Oh I know!! Ummagumma is one of the best albums ever created. Sysyphus is such an amazing 4 part song!
I've never done LSD, but if I did, it would be while listening to that album. I reccomend everyone needs to hear it at the very least once before they die.
And Fooloonthehill, let's make this AHM thing happen!
Also, you're gonna love the rest of the album. Especially Alan's Psychedelic Breakfast.
Fat Old Sun in one of the most soothing songs there is.