Like other composers interested in post-stereo audio possibilities, Bob did "sound installations" with musics composed just for the installation. the multi-channel/surround thing was for him the only real way to experience music. I remember one day in Denton, we were listening to a Charles Lloyd record and he snuck up behind me and help up two LP jackets behind my ears. The record immediately took on another dimension (of course, we were both stoned as fuck, so...but still...) I jerked up and said wtf Bob, and he just grinned and said, see, this is what you're missing...at the time I though it was just Bob being Bob, mister ears, but now....yeah, surround, an immersive listening environment, not just an "audio" concept.
But I don't want to hear it unless it was recorded that way. The intent.