Richardson was commissioned by the editor of Radio Times (London) to write an article on Liszt. She proposed Cosima Wagner instead and the article was influential in her writing The Young Cosima. She wrote 'Cosima Wagner as Daughter and Wife', more indicative of the content than the published title, 'The Story of Wagner and von Bulow - and the Woman Behind Their Music' (The Young Cosima, Appendix 370).