谁知道歌曲<FAMOUS BLUE RAINCOAT>是根据什么事情写的?

it's four in the morning
　　the end of december
　　i'm writing you now just to see if you're better
　　现在是清晨四点钟
　　十二月已然尾声
　　此刻我写这封给你其实只是想知道你过的好不好

　　new york is cold
　　but i like where i'm living
　　there's music on clinton street all through the evening
　　纽约很冷
　　但我很喜欢我住的地方
　　因为我住的柯灵顿街上彻夜都响著音乐

　　i hear that you're building your house deep in the desert
　　are you living for nothing now
　　hope you're keeping some kind of record
　　我听说你将自己的生活深筑在荒漠中
　　难道你现在真的一无所求了吗
　　多麼希望你至少能留住一些值得眷恋的东西

　　jane came by with a lock of your hair
　　she said that you gave it to her
　　the night that you planned to go clear
　　did you ever go clear
　　珍回来了，带著一绺你的头发
　　她说那是你送给她的
　　是在你决定把事情厘清的那天夜里送给她的
　　而你真的把所有的事情都理清了吗

　　the last time we saw you
　　you looked so much older
　　your famous blue raincoat was torn at the shoulder
　　y