On the verge of leaving the house this morning when I heard on R2 "I'll follow the sun". A few minutes ago I looked the song up on Wikipedia:

"One day, you'll look to see I've gone." There is an unwillingness on the part of the song's narrator that adds a tenderness and tragedy to his leaving: "And now the time has come, and so, my love, I must go. And though I lose a friend, in the end you will know ..."

A song to remind me is never far away - not that I'll ever forget.