parenting.stackexchange.com/questions/27439/… asked about some music sources/ideas... I have a few tracks on my Deezer account (like Spotify) which you might like, they're not exact matches but will get you started

have a search for twinkle twinkle little rockstar, they've done some lullaby style covers of various rock songs, also an ace cover of the imperial march from Star Wars (youtube.com/watch?v=ExZLubNF78A) if that's you're kind of thing. :)