I saw a site that had every title on it that ever used A3D or EAX technology and this included a non-gaming category of APIs and music players but I found that none of the links worked anymore so they were basically all dead ends, even with google searching.

I suspect however that there MUST be some sole surviving free program out there somewhere that utilizes A3D hardware acceleration to give you 3D music or something like that. Does anybody have such an application?