Midland’s frontman Mark Wystrach teamed up with The Band of Heathens for a cover of Marty Robbins’ “El Paso City.” The tune was recorded as part of The Band of Heathens’ live-streaming show, Good Time Supper Club, which airs on Tuesdays. “El Paso City” was the title track of Marty’s 1976 album. The tune, which…