Out of the Blue was an honest-to-god masterpiece of an album, and probably the pinnacle of the Electric Light Orchestra's use of the classical music instruments in rock and roll songs. And the centerpiece of this album was almost certainly Side Three.The four songs that comprised that side of the album were collectively known as the Concerto for a Rainy Day, meant to evoke the emotional responses that we have to the weather. And when the sun emerges after a storm, and it's just plain glorious outside, that's the feeling that "Mister Blue Sky" manages to convey so masterfully. As Jeff Lynne himself said in the 2018 book Wembley or Bust:The lyrics to 'Mr. Blue Sky' are simple and easy to visualize. When the song is playing, you can picture everything that's going on and everybody knows what I'm talking about. It's the thought of, 'Oh, isn't it nice when the sun comes out?' And you know, it really is. 'The sky is blue, wow, what a thing.' It's a simple kid's story."A couple of housekeeping notes on this episode:First, I screwed up some of the geography involved with Lynne's writing of the album. The cabin was in Geneva, not Munich. However, he did record the rainstorm in Munich. Anyway, please forgive the error.Second, I need to give credit to Soundjay.com for that needle-drop sound effect I used right before "Sweet is the Night."Third, some parts of this episode were a nightmare to record, so I'm sure my family is wondering why they heard me saying the same things over and over again. (This may also account for my geography error, too, but I should have caught that before committing the episode.)Click here for a transcript of this episode.