  Du Bos seems to have been one of the important sources of the resemblance theory of musical expression in the eighteenth century. Batteux is known to have read the Critical Reflections and was apparently influenced by Du Bos when he wrote that gestures and sounds are “natural means of expression” that are “especially suited to the expression of emotion”. He adds that “music is half-formed in the words that express some emotion. It takes only a little art to turn the words into music ” (Batteux 1746/2015, 129; 133). These passages from The Fine Arts are little more than paraphrases of passages from the Critical Reflections.