Tracks by Yosi Horikawa like "Letter" certainly had the pencil traversing a warped path behind my head. Usually when sounds are more clearly imaging from above or behind me, it is most likely mixed in the track and intended for headphone consumption. It is of course easier to apply that binaural mixing to headphone playback than through speakers where crossfeed is already locking the image forward. Hearing imaging height or "3D holography" out of something mixed for stereo speakers without special HRTF effects is what I find to be a weird proposition.
Regarding crossfeed, I personally don't really hear much "envelopment" when in the concert hall, even if not especially when listening from the mezzanine. Huge orchestral swells or tutties are still largely frontal, and I suppose I can in some cases where further back feel the volume of all the hall reflections before me, I suppose that presenting a form of "soundstage height". With that, I've found that good crossfeed, especially one based on personal HRTF measurements and SOFA file rendering, can present that frontal rather than lateral hugeness well, sheer loudness or bass content being enough for me that wall of sound in front of my entire face like in a live recording, and I suppose headphone pad or driver height can help with that. [[I suppose now listening to
https://app.idagio.com/recordings/12229508 with my HRTF rendering, recordings or pad height can contribute to a sense of there existing a "ceiling" to the sound, or feeling the sounds expand in all directions within that virtual space. I feel a bit amused by the prospect that this mere discussion is causing me to notice more "soundstage" or space in the same playback system and recordings. Maybe my custom NMD pads for the HE1000se help give the sense of the ceiling being yet higher. I still desire improved imaging of
distance even for loud sounds.]]
Otherwise, with this crossfeed, I certainly don't hear
individual sounds imaging at different heights. For example, how many of you have heard a recording where a singer's guitar actually imaged below their voice?
I suppose another question for those who experience "amp holography" or whatever, can you literally
look at the virtual sound sources without feeling like you need to cross your eyes or look far left and right? That is what I can do with my DSP, and with head-tracking, even when my head is bowed down, resting on my hand, I can still hear sounds imaging from my Genelecs (on hiatus until I get a proper listening room and room treatment; I used them for measuring my HRTF and to double-check weird imaging) even when they are turned off with the plastic wraps draped over them.
Now, I would certainly like to check out some tracks known to exercise the sense of "soundstage depth" or varying distances between sounds. At least for classical, some recordings project some sounds better or at least convey timbral distance though it may still sound like that further timbre were still imaging from closer.