Jazz Hour = another red flag. The picture that's taking shape here is troubling. On the one hand, it could be an unauthorized recording, and/or a low-quality recording that has been shopped around by the fly by night, bottom-feeding labels of the world. In addition to that, the chances are fairly good that the information being presented about the material could very well be incorrect. It could even be a compilation of recordings from different performances from who knows when/where. I've been down that road with various CD "discoveries". Anyway, perhaps there's a hardcore Brubeck enthusiast around here who can help sort this one out.