Talking of funeral songs (if it's OK if I join in?), we had Somewhere Over The Rainbow (Eva Cassidy), very poignant as it's her middle name, and I like to think of her as being over the rainbow, somewhere out there, just beyond reach.
Then we had Brahm's Lullaby. It was a struggle to find a classical one, that sounded 'right'. DH wanted this as we were "putting Tamsin to bed, for the first and only time". DD1 has this on her nightlight, and plays it till she sleeps, so I have to hear it nightly, not only that, but she used to have it playing when she woke, and Tamsin would 'dance' to it, and also try to kick DD1 off my lap. It's hard to hear it now, but I have to.
moomin I think that. I keep thinking if I close my eyes & concentrate very, very hard, that I can make the world turn backwards (as in Superman). I can go back to before I even met DH, when I was a single mum to a teenage lad, and was 'safe'.
Of course I don't really want that, and am happy with DD1, and was very happy to have Tamsin (even for such a short time). But I could do things differently - as Ferris Bueller said (that great wise sage 
"Life moves pretty fast. If you don't stop and look around once in a while, you could miss it."
which kind of sums up how I feel, things happen, you don't realise how happy or 'safe' you are, and you just wish you could have had time to savour in the moment, really drink it up, and notice when something was wrong - which I so regret