 Herder is skeptical with regard to the role of mathematical or physical explanations in musical aesthetics, as these fail to explain our first-person hedonic and emotional responses. Much like Rousseau, he finds fault in Rameau on these grounds (Herder 1769: IV, 6). However, Herder does not abandon scientific explanations altogether, and in fact appeals to physiology to advance his own hypothesis (Herder 1769: IV, 6). While the details of this proposed explanation might be uninteresting, it is noteworthy that, by appealing to a causal explanation, Herder is weakening the link between expression and imitation.