>> I kinda liked their first album. Then they got pompous. No further interest. <<
Piper at the Gates of Dawn? Really? Even they pretty much agree it was embarrassing crap. I think they are too harsh; I think you can tell they are honing their craft, and touched on some cool things with the spacey songs (Astonomy Domini, Set the Controls for the Heart of the Son).
Or do you mean their first monster hit, Dark Side of the Moon? If so, I still don’t know how you can call “Shine On, You Crazy Diamond” or anything from The Wall, “pompous.” The Wall is occasionally grandiose, but self-referentially so: the grandiose music even serves as the theme for a judge who is literally an ass, complete with scrotum chin. It’s the opposite of pompous; it’s shameful... which is why I wrote that its context needs to be guarded so carefully.
IMHO this is the best Early Floyd song, and it was a Rick Wright song.
https://www.youtube.com/watch?v=oABmz4qse3w
The song I liked was “Interstellar Overdrive.” It had an almost Link Wray aggressive feel to it. Couldn’t/can’t stand overproduced, grandiose, music that pretends to be Rock. I despised bands like Vanilla Fudge. I’d rather listen to a Danny Gatton instructional video than suffer through listening to rockers with swollen heads!