Bingley's thoughts may be correct, for me this is something I've wanted to do unrelated to any survival skill aspect. My relearning a musical instrument is for me and is not intended as a morale boost -- if not for double pane windows it would probably just annoy the neighbors. Recall the string quartet in "Band of Brothers" who played while their German neighbors salvaged furniture and other items from a recently bombed town. Beethoven as I recall, but was that a dirge -- not much of a morale boost, beautiful scene though.