Here are some possibilities of what they are talking about for kids’ concert and Generations concert. Just a short list to let folks know that there are many options available. This is just less than an hour of searching.
KIDS
Cartoon Carnival
https://www.youtube.com/watch?v=5FvILYZODzY
Spongebob Squarepants
https://www.youtube.com/watch?v=vI72A4O-iLM
Complete Harry Potter
https://www.jwpepper.com/sheet-music/media-player.jsp?&type=video&productID=10348693
GENERATIONS
Theme from Arthur (Burt Bacharach, btw)
https://www.hebu-music.com/de/artikel/burt-bacharach/editions-marc-reift/arthurs-theme.263378/
Little House on the Prairie
Abba Medley
James Bond Medley
https://www.jwpepper.com/sheet-music/media-player.jsp?&type=video&productID=10427444E
Star Trek
https://www.jwpepper.com/sheet-music/media-player.jsp?&type=video&productID=10074221