Easy BOS, "Kodachrome." That refrain has certain notes that make my hair stand on end (in the good way). "Sunny day, oh, yeah" -- that ascension of notes, ahhh. What notes are those?
i don't know what notes they are, but the harmonies are a third apart (a third being the difference, say, between the "c" note and the "e" note), and the top note moves up a half a step on "oh," and another on "yeah," while the lower note moves down a half a step on those words. at least that's what it sounds like to me. i'll have to verify on an instrument later.
anyway, i think the fact that the top note is going up and the lower note is going down is what makes for the neat-o sound.
day.
oh.
yeah.
mind games, indeed.