Thanks for all the suggestions so far. What I am looking for is something slightly different (although I don't even know if anything like this does actually exist): basic maths (e.g. multiplication table) worked into a song (Rap music/patterns might work - sorry, I know Mudcat is Folk/Blues, but still....)kind of automatically (unconsciously ?)learning basic maths through music and songs. Is there anything like that around?
Ulli