Hi KramL - How people write songs is different for everybody. For me, it is something I started doing for fun just a couple of years ago (I'm 50 now).
At first, I started goofing around with tunes that were already written and coming up with new lyrics for existing melodies and chords. I learned alot about basic song forms from doing that.
Then, I started playing around with some stuff that wasn't already written - stuff that is somewhat original . . . I say somewhat original since all my stuff is pretty basic and it all probably sounds like something else.
Also, I work at writing songs every day. I scribble down ideas constantly and have a notebook full of stuff that might someday work in a song. Some days I 'finish' a song, some days I don't - but I do it every day otherwise nothing would ever get finished. Also, I try not to get bogged down on an idea that just isn't progressing - I can always go back later and work on it some more.
Take your lyrics and try to fit them into a very simple set of chords. The melody and will 'happen' with a little bold experimentation. James
"That darn Pythagorean Comma thing keeps messing me up!"
[url]http://en.wikipedia.org/wiki/Pythagorean_comma[/url]