Identify musical element reminiscent of Pink Floyd

Question

I'm listening to this piece by Entheogenic.

The part starting from the time shown by the link, has something in it that I'm sure I heard from Pink Floyd, but I can't remember in which song.

Anyway, my musical knowledge is so poor that I can't understand what's happening that made this part so similar to the Pink Floyd one (well I can't remember the song, hope some can) What's happening? Is just a chord progression? Is there a modulation from some key? Does this come from somewhere before both Pink Floyd and Entheogenic?

Answer 1

Judging from the cover image, it looks like Entheogenic might be explicitly inspired by Pink Floyd. They are using a number of techniques to produce that "Pink Floyd" mood, but the one that sticks out to me at that point is the use of a synthesizer with a pitch bender that smoothly shifts between widely different pitches.

I'm guessing the song you're thinking of is "Welcome to the Machine" from Wish You Were Here (1975).

This same effect was also widely used in 70's funk. Kool & the Gang's "Summer Madness" (1974) is a paradigmatic example.