As I'm being dissected and given away to any body who needs a spare part or any lab that needs me for an experiment, I'm not having a funeral. I'm having a really good sing instead. So, as long as someone sings, Beaulah, Bright Morning Star, Canaan's Land, All the verses of Northfield [including Rudolf the Red Nosed Reindeer ~ try it, it works], then anyone can sing whatever they want as long as it is a cracking good sing and not morbid. No black, no tears, lots to eat and drink. You're all invited.
By the way, when Jon's mum 's coffin went through the curtains at the crematorium, she had played exactly what she asked for ~ come on baby, light my fire!!