I have 2 songs that make me nostalgic for my lost loved ones. Nothing compares to U by Sinead O'Connor, this was the last song my mum fell in love with before she died, she played it so much she almost wore the vinyl out :). The other is a Cyndi Lauper song, Time after Time, my brother used to sing this in the car when we were heading for the beach as he said it spoke to him of the way it was between us, that he felt I was always looking back over my shoulder to make sure he was still there and that I was always a few steps ahead of him on our way through life.