Phil, your post gave me a smile. When I was in high school in New Mexico, one of the annual football games was against the U. S. Indian School in Santa Fe. The cheers on their side, often in various pueblo tongues, were not in the least complimentary.
It is also true that their songs are on a more personal level than ours, but a number of native performers are now singing (not the personal, tribal, but invented songs) on cd. This was why I suggested getting one to do the cut. Here in Canada, we have the APTN (Aboriginal peoples?) TV cable channel, and a number of professional native musicians and trained technicians outside this service who work in the community at large. I am sure that these trained people are available in the States as well.