Okay, so, the answer about the stacked same exact voicings per octave got me thinking: I can see how this technique could be useless in the context of a chord voicing spread throughout more than the space of an octave (at least), but what if I want to achieve some reinforcement over a certain voicing much like when some harmonic distortion is added to enrich or fatten a sound? Some mud may be necessary to be cut via EQing (if used in the wrong areas), but it seems like a valid production technique when trying to add some density while maintaining the harmonic colour, if you will.
absolutely, but it will NOT work if you use the exact same notes in a different octave. what you are trying to achieve will be achieved by using different notes, and i would be delighted to tell you which