According to the legend, Jes’ Grew comes and goes. Its peaks in the past one hundred years include the jazz age and the age of Rock and roll and Rhythm and Blues. One might argue that certain dance music of the current period might also be a hearkening of the Jes’ Grew infestation, but I think its insistence on mechanization renders its inclusion unlikely. However, Jes’ Grew will never die. And it gestates in festivals like Warren Haynes annual benefit show in Asheville, North Carolina. If it doesn’t save your soul, at least it makes you feel like living for another day.