Busimanolotome Osceola, founder of the New Seminole (NS) and my father-in-law, encouraged our "tribe" to do this instead of the traditional powwow dances because-- I think-- he loved the dance's roots in rebellion, in the disruption of the status quo which, if anything, the NS were and are.
My first introduction to the 49 dance came on a moonlit night deep in the Everglades on a hammock less than a foot above the water. The trees that had taken root there were covered by camo netting to hide us from the prying eyes of Uncle Sam's spy satellites (I know, I too thought our fearless leader was a tad paranoid until we shot down a drone over the Everglades). This is what it sounds like-- and yes it traditionally uses English lyrics because the 49 dance's roots only date back to early 1900s.