Musical ideas are all around us. Sifting through them to find something that's going to be appealing not only to yourself, but also to other people is the real challenge.'' My husband is a song writer and he is so much better than he would ever admit. He was written and locally recorded many of the songs he writes and out of all of them, one has stuck out the most. He wrote a song called, ''Saltwell road" about the old slave house on Route 1 in Gallatin County, about John Crenshaw. It's interesting and also catchy so local country music stations actually played it for