O2 is jazz brush, as I've recently learned. BTW, I know of some of these for sale, if you are interested. Its funny, after looking for these cards (not too rigorously, but looking) for years, my latest trawl has turned them all (?) up, more than enough actually. I'm actually buying a few that I already have (like the 808 and 909 cards) for back-up or to auction off (though I feel uncomfortable with the greed factor in doing so).
I really like the "ethnic" card, actually, though its a vaguely offensive name. I also find the sound effects card fun, but with all of these, I go really heavy on the ContControl messages from Cubase and insist on tuning and tweaking the sounds (lately using galaxy plus) to personalize and freakify them. Otherwise, you might as well use a sampler and some dumb sample library from, like, the late 80's, since there isn't anything so unique about the sounds, in most cases. Its just a fun, limited but quirky device, which I think are the kinds the world needs more of, rather than all the latest GM-303-and-whatever-is-timely stuff that's come out recently.
I read on Roland's site (
http://www.rolandus.com/users/rug/archive/win_98/dept16_2/expand.htm ) that there were acutally 14 cards made, though I can't figure out what 12,13,14 are. I heard there was a totally tabla card, but that might be the ethnic. Anyway, its a funny article, because they are basically taking bows about how clever and supportive they are to have released card libraries, but in fact there legacy support is horrible. E.g. it's the only mention of the R-8 on the site. No ROM updates, no editors, no tips and tricks, just links to their dumb magazine sites that are really adds for their latest shovelware. Okay, enough corporate bashing, for the moment.
email me and I'll put u in touch with someone selling a jazz brush card, if you like.
your comrade striving for r-8'ness, Ben