No, I think that's a good idea. The poster below you is suggesting "Oh Shenandoah," which I love and think would stand up fairly well to that kind of playing, meaning it would be not impossible for even someone as untaught as me to play it a couple of different ways.

For vocal accompaniment, I have to admit I'm going with the chord dictionary/fingerpick method, but so far what I'm doing sounds all right, although I'm sure it's not right, if that makes any sense.