album_presenter.description.discover album_name=Back Beats / Spitfire, artist_name=Mills Blue Rhythm Band, records_count=1, countries_count=1, countries=US, media=Schellack, year_range=1938album_presenter.description.releases album_name=Back Beats / Spitfire, artist_name=Mills Blue Rhythm Band, records_count=1, countries_count=1, countries=US, media=Schellack, year_range=1938album_presenter.description.countries album_name=Back Beats / Spitfire, artist_name=Mills Blue Rhythm Band, records_count=1, countries_count=1, countries=US, media=Schellack, year_range=1938album_presenter.description.media album_name=Back Beats / Spitfire, artist_name=Mills Blue Rhythm Band, records_count=1, countries_count=1, countries=US, media=Schellack, year_range=1938