There is the famous story of the jazzman (can't remember who) who always had these great tunes come to him in the middle of the night, but never wrote them down. One night he decided that he was going to put a sheet of music paper by his bed and he had this incredible tune that came into his head in the middle of the night, and he wrote it down, totally thrilled. When he woke up in the morning, he realised it was the middle section of "Stardust".

yours, Peter T.
P.S. Most country songs are "The Great Speckled Bird".