Hello,
The other night I was watching VH1 and they showed a documentary on Kansas. One of the guitarists who was the song writer told a story how he had fingering warm up when he practiced. His wife told him that he should use that in a song. At first he didn't listen to her but then he brought it to the band and they were saying "Why didn't you bring this to us sooner." The song became "Dust in The Wind." They even mentioned in the documentary how Joe Walsh had a similar incident with the Eagles. Pretty cool coincidence.