Fran53
Mine was a series of books about a young girl named Drina who attended a ballet school I think was in London, I've forgotten the name of the author. I'd love to re-read them if only I could find them. No-one else seems to know what I'm talking about but I know I'm not imagining it!
They are by Jean Estoril, otherwise known as Mabel Esther Allen. I was more or less grown up by the time they were published, but I have read and loved them, all the same. I’m not sure whether they are still in print, but they have been reissued from time to time.
Ballet for Drina, Drina’s Dancing Year, Drina Dances in Exile etc etc.