To touch on that a little more, and to jump forward just a tad, Jugband Blues has the same problem. While a bit out there, the chorus (around the 40-second mark) is a very nice melody...and then we never hear it again, as the latter half of the song goes into no-man's land and just sort of bludgeons you with all kinds of weirdness and whatnot before just ending. Contrast songs like Bike and Jugband Blues to early singles like Arnold Layne, Apples and Oranges and Candy and a Currant Bun. Those early singles all had their tidbits of weirdness, too, but the nice melodies almost never got lost or overtaken by the, lets call it, experimentation, but it's like by the time they got around to making their first proper album, Piper, what nice melodies Barrett had were being glossed over since the drugs he was taking was making him go all schizo in every song, so not only were the melodies getting lost, the arrangements, especially by short song standards, were suffering badly.