Proprioception and Emotions

I've posted on proprioception in the sense of one's awareness of the physical aspects of music making. There can also be an emotional component, as sometimes the physical gesture used to create the sound can mimic a gesture that can communicate emotion non-musically, e.g. caressing the piano keys to suggest a physical caress.

This article about Jesse Prinz says this about one of his books:

His 2004 book, Gut Reactions: A Perceptual Theory of Emotion (Oxford University Press), follows William James in arguing that emotions are perceptions of bodily responses to cues in our environment, which they follow rather than precede.

If this is to any degree part of what's going on (and I've never heard of this being something James talked about), it means that we are both sending and receiving emotional cues at the proprioceptive level, both consciously and non-consciously.