Interesting. Intuitively I would expect most stereo recordings to have mono bass in the 80-120 Hz region (with an implicit assumption that it's played back in phase) but I'd love to be proven wrong!
I wonder why should be so .
I compose music and placing waves on left and right channels is not a standardized thing for me but it will depend greatly on the depth I pretend and very much on many other things such as providing movement and stage width...
80-120 Hz means E2-B2 if A4@440 and this is home for trombones, tubas, timpani (larger sizes), harps, pianos, harpsichords, pipe organs...cellos, harmonium...double basses...
Last month I finished a song and thunder was placed on left and right channels with the appropriate panning that clearly depicted the thunderstorm arrival, huge extension of it as thunder went overhead and around and finally passing over while slowly dissapearing on the "east"...