Ideas to include
Three generations in one room
The children, the grandchildren, the house everyone grew up visiting. Name who is around the table and the song becomes a gift from the whole line, not one person.
A life in five moments
The job they did for forty years, the town, the passion, the turn that changed everything. Five moments beat a full biography every single time.
Gentle humour
The one habit the whole table could describe with their eyes closed. It gets the laugh, and it never once mentions their age, which is the whole trick.