Ummagumma is one of the last floyd albums I heard because I heard it was horrible. When I finally got it I wasn't expecting much but, to my surprise, I found it quite enjoyable. The live album is really great, it's one of my favorite bus-ride-to-school albums. Saucerful on it is amazing.
as for the studio album I don't like first and last track, I don't listen to them very often. Grantchester Meadows is really good, but I prefer the KQED version with Gilmour singing parts of it. Small animals is fun, And The Narrow Way is really the gem of the album.

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Daddy! Take the banana! Tomorrow is Sunday!