Stuttering while praying and other "special" situations

Stuttering is situational, and different situations affect us differently, but I think it is clear that words that come from memory and with a rhythm (such as in singing and poetry) are processed differently in the brain, and in ways that, for most of us, "bypass" the areas that are vulnerable to stuttering. This is very different from formulating new thoughts and expressing them in new language "on the fly". I have never heard of any stutterer having issues with singing. Poetry, acting, praying, reading, reading in a "chorus", etc. can affect stutterers differently. We all have a vast range of experiences in these areas. Again all these activities are processed in the brain in ways that differ from spontaneous and situational speech.