Is he being creamated?? If so, "Ring of fire" would be an excellent choice for a Johnny Cash song
Oh OK....give me an e-slap for that one....
On a serious note, I have lost 3 of my 4 grandparents, I know how you must feel and I am sorry. You are in my thoughts and prayers...seriously.
A good choice for a Johnny Cash song would be:
"The long black Veil"
"The old rugged cross" (actually Johnny and June) <-----My favorite
"will the circle be unbroken" Just change "lady" to "Man"
If you have limewire, download them and listen.