"El Paso", by Marty Robbins, has been my favorite cowboy song since I was eight-years-old or so, but I'd always focused on the story, not the musicianship. It was recently pointed out to me that Robbins was an incredibly good guitarist, and that some of that skill could be heard in El Paso. So I listened again and by golly, my friend was right. Here's a version, using the original performance with — ahem — a different actor.
UPDATE: Oops! My friend was wrong — the guitar was supplied by Grady Martin. Still a great song, however.