djrobotham, Five good ones here, thought long and hard about this one...
#ThursdayFiveList
#TheShadowOrigin Unknown - Valley of the Shadows
https://www.youtube.com/watch?v=a5meT63flnMCat Stevens - Moonshadow
https://www.youtube.com/watch?v=C9v8fStNnhkDarkthrone - In the Shadow of the Horns
https://www.youtube.com/watch?v=kAajs4oMbpgGZA - Shadowboxin
https://www.youtube.com/watch?v=-IZE7JSLJU0Jean Ritchie - Shady Grove
https://www.youtube.com/watch?v=njDhbMK2FmU