The music is tastefully arranged and sung, and is accompanied by photos of happy faces and pretty nature scenes that a child can flip through while singing along. Words are displayed for those who can read, but Peter likes to listen and watch, while I sing. Older children can sing along, either because they already know the words or can read them. I've learned a few new primary songs myself this week, by singing along!
Once a song is over it automatically moves on to the next song, so it could be used as background music for a Sunday afternoon as well.
There is a free version with twenty or so songs, and then a (rather expensive) version you can buy. I splurged.