Haunting Greensleeves Song Musicbox

Location:Australia

I work in a retail store in Shepparton, Victoria. There is a musicbox song that plays at least once a week and it seems to be around the same area of the store near the mirrors and curtains section, or sometimes it will follow you around the store and things seem to fall off the stock shelves. Most of the time the music that plays seems to be in the morning or when its getting dark. Most of the staff at work are aware of it and my Manager has experienced things flying off shelves in a strange manner or curtain rods falling off. At one stage she was almost knocked out when a curtain rod fell on her and caused some bruising. One of the new staff mentioned to me that when she was sent upstairs to get some layby items for a customer she heard a whistle when there was no one there or its an area where customers do not enter. She said it was a creepy whistle like as if it was calling her type of whistle, not a wolf whistle or anything like that.
I should also mention that right next to this building is the town's electricity power plant, and before it was a retail store there were tomato farms there over 50 years ago.
Anyway the song that the musicbox plays is 'Greensleeves' apparently it is a song composed back in the 16th or even 15th century. For those who know about music you will know this song, I have looked up the lyrics to the song and it seems to be a sad love song I think its about a love betrayal.
Have any other readers experienced music haunting or music box haunting or anything like that?

Source:yourghoststories