I play the vibraphone. As a player, I'm used to having the low end of the instrument on my left, and the high end on my right.
However, when the instrument is recorded, a setting with 2 microphones is common, one 'pointing' to the low end, and the other one to the high end, and the both microphones are mixed with others to produce a stereo recording. And then things get tricky : some recording will put most of the low range of the instrument in the left track and most of the high range in the right track (mimicking what the player hears), while others will to the reverse, assuming the listener is on the other side of the instrument, in the audience. The latter feels strange and quite wrong to me, and quite inconsistent (because the audience is usually sitting at a distance and the stereo effect of a 2m long vibraphone heard from 10m is actually quite small, compared to having the vibraphone on one end of the stage and the bass player at the other end).
Is this specific to the vibraphone (which is not as usual for recording engineers as e.g. a piano) or are there different conventions in use among the sound engineers on this topic?