I am blessed with a family that loves singing and sing-songs. Our trick is to take turns to sing a song (those that want to). Some will sing quiet folk songs, some will sing chorus songs, some will sing blues, some will sing 'modern' stuff, (Beatles etc.), some will tell a joke or a story. The mood changes with every song sung and many of the songs will spark off reminiscences - ('I remember you singing that when...').There is no leader. There are no 'sacrificial lambs'I love these times, they have always been, and still are, very special to me.
Catrin.
P.S. A good rule is 'no-one sings a song unless they want to'.