We are told in the Revelation to John that many groups will have their own songs to sing. The Twenty-four elders will have their own song. Those who came through the great tribulation will have their own song. It may be a wedding reception that is much like a combined variety show and worship service, with all of us belonging to many groups and learning those songs for the enjoyment of others.
The Grandmothers Who Got Stuck Bringing Up The Grandchildren will have their own song. I want to hear that one, front and center.