Does anyone know of an sad songs that would be appropriate for a funeral??

My friend's Grandpa passed away a few days ago, and her Mom asked that she find a song for the funeral, and then she asked for my help. I told her I'd make a CD of several songs, to help her out. So far I have:

I Will Remember You-Sarah McLachlan
Tears From Heaven-Eric Claption
Wind Beneath My Wings-Bette Midler
My Heart Will Go On-Celiene Dion
I Will Always Love You-Whitney Houston
Time To Say Goodbye-Sarah Brightman

... Any suggestions would be a great help, thanks!