I'm looking for the whole tune to Streets of Laredo that's currently being used on ME TV to promo Bonanza, Gunsmoke, and The Rifleman—so I can't tell which show it comes from. The singer has a magnificent voice. On the syllables "young cow"(boy), the melody goes from one octave to the one above, like a yodel. To me, the tune seems more mournful than the familiar tune, partly because it's in a minor key. Any hint appreciated.