mwah, it's personal taste as well
but generally , while psychedelic, different things might be liked then when one is not psychedelic, although not necessarely
it's all very unpredictable stuff
natural things tend to go down well(especially on shrooms and also with acid, altough the latter sometimes might come on a wee bit to strong and then no matter what music, it's gonna be weird

, bongo music, indian nature crapola, buddhist chanting, whale sounds, whatever floats your boat..
essentially , going truly psychedelic, is so overwhelming to the senses ,that the surroundings at that point are of lesser importance then the surroundings as you were working up to it
eg, if you play something that doesn't set your mind in the right direction , before you go in
then chances are , you'll have a bad trip, even if you play the right music at the peak of the trip
playing gangsta rap is probably a bad way to prepare for psychedelics
this type of music, is not really threatening, those who like it probably find it calming , so in a way yes, i can see it work for some while prepping to go psychedelic
i've just always been more into Jimmy H , very captivating
it's very personal really, i can imagine that somebody who hates electric feedback on guitars, would actually hate jimmy h, and launch into a bad trip with freak out scary synesthesia from it...(senses switching function, hearing colors, hard to explain, but i found it quite a blast when that happened)
wether or not some music becomes better on psychedelics , is just to impossible to predict
fan's of music, might hate it during a trip ( and even end up hating it for life)
some who don't like something, might get turned on by the same music they don't like sober
somebody who tripped well on something one time, might even hate the same stuff second time around
varying doses, levels of tripping, external influence of the enviroment, it all blends within a heavy trip, and the outcome could swing either way...
it's like a box of choclats, you never know what you gonna ge-et