My Father-in-law, Marvin Gibson, passed away in April 2011 the day before Easter. He was a tailgunner in WWII in a B24 Bomber stationed out of Spinazola, Italy. He told me that after every mission to Europe that the navigator would sing this song as they made their way back to Italy. The FR7X allows me to reproduce the sound of the B24 engines and I imagine the angels signign and the harmonica represents the navigator. Enjoy.