Bob Pegg's song, Fiddler's Cross, mentions crossroads: "Dim down the lights/watch his finger ends burn/ they say that he went to the crossroads to learn/they say that the old lad had taught him his tunes/by the light of a dozen full moons." Later on: "Nest day at the crossroads his fiddle was found/splinters and wires on the grey mossy ground." There's probably a lot more references.