Malcolm Douglas said, inter alia:

As I've mentioned before, suggested guitar chords are useless unless people know what the tune is. If you want to be helpful, please post the tunes with the words!

As so often happens, I'm the odd man out, and I blush not to say so.

I'm a solo act (most of the time), and if I can't get hold of the original tune (or sometimes if I don't like the original) I feel quite free to supply my own tune to a text which has none. Having a set of chords is sometimes a fine start toward working up my own tune in those circumstances.

There are people who will disapprove of this, I suppose. If I were doing this with a commercial song, I think some would say that one shouldn't do it for copyright reasons. But I sing mostly folk and folk-type songs, and the tunes of those vary in the normal course of things. I'm just as entitled to change or entirely rewrite the tune of a traditional song as somebody's great-great-grandfather was. And frankly, in some cases where I've provided a missing tune and later heard what was traditional I've been of the opinion that mine was better. That of course may be mere pride of authorship.

Dave Oesterreich