The title of the work relates to the Baroque theory of aesthetics in which music is described as being capable of expressing any of more than twenty affections. A basic aspect of this theory is that music should only express one affection in a work or movement. In this way, Three Affections is consistent with the Baroque theory. Heroism Grandeur is boldest of the three movements. Reflection is quiet and steady and is always on the edge of tunefulness.
Heroism is vigorous, agitated, and occasionally dance-like.