"she had heard sounds close up to the bodywork of our car and she was alarmed realising that nothing was in view"

My wife and I freuently visit Ruperts View when we park our car to enjoy our lunch break. On several occasions we have heard music `on the air` that could not be explained. On our last visit the sounds  were more pronounced; more like horse riders than music. I dozed off as I sensed a sound that I could only describe as being similar to a distant earth tremor. That evening my wife told me that she had heard sounds close up to the bodywork of our car and she was alarmed realising that nothing was in view. The terrain is open level ground.

Regards, Brian