Holophonic sound is actually for headphones (used for The Final Cut amd Pros & Cons), while Q Sound is for speakers (Amused To Death). Waters has talked extensively about both formats. I first read about it in Nicholas Schaffner's Floyd book A Saucerful Of Secrets back in the day.
Oops, right! I confused the two.
Momentary Lapse was recorded using Spherical Sound, which seems to just sound more expansive but nothing to write home about. Chris Squire also used it for the song "The More We Live" on Yes' Union album.
I seriously doubt Squire had anything to do with its use on that track. The song was written (and the bass played) by Billy Sherwood, and most importantly, the track was produced by Eddy Offord. Easily the best track on that album.
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