Members could be mixed but the atmosphere seems alpha stereotypically: hippy, weed, yuppys from all quadras etc. Jam band, free association lyrics, high variety, high ne
Trey:entp ti , in interviews often projects himself as a narcissicistic intellectually arrogant asshole, at least to the media, a music snob. The elitism seems a little opposite of alpha though but its just against media/ignorance and pointing out Ti- I think.
Which brings me to other drug imbibing listening jam bands like the Grateful Dead. I've read one poorly translated socionics article claiming drugs are the domain of Ni, for altered consciousness, but it was a shitty article that didn't convince me really and seemed written by a 6th grader.