Both my grandchildren (aged 4 and 6) have loved these songs for over a year. They seem to transform the atmosphere if one of them is feeling upset! The music is always lovely and content is great - some focus on numbers, colours, planets, days of the week and so on, but also about vegetables, fruit, friendship, and feelings. I think they would be suitable from an early age up to age 7 or 8. We listen on Youtube but I think they would be great on Yoto for bedtime.