I recently heard Nanci Griffith in concert, and she sang a song that I had heard on a copied tape of one of her albums. This copied tape had no song titles printed on it, so I had to rely on what I thought I heard to figure out the titles and lines. This particular song hook line [title] was hard to understand on the tape, but the closest I could come was, "You're one date shy of a sure thing."When I heard her in concert, she said the name of the song before she sang it, so there was no confusion: "One Blade Shy of a Sharp Edge."