Late 60's or 70's psychedelic rock song
It's not Led Zeppelin.. It's a slower tempo song, hard rock. It has an organ playing in there somewhere. A male sings and later in the song he does a very high pitched (almost shrieky) 'ah-ah-ah, ah-ah-ah, aaah-ahah, ah-ah-ah. The first two sets of ah's are the same, as in they descend tone by tone. Then the third set is a little different wherein it is a higher tone 'aaah' and then quicker descending "ahah". Then the final set of ah's are the same as the first two. This is all the info I can remember about the song. Please heeeelp!