This is a book of concert reviews composed in real time on Sophia Marshall's iPhone on the nights of the shows, and posted on her blog, The Flash Boston (theflashboston.com), the same night. The pieces illustrate the vibrant youth culture and music of the decade 2010-2020 in detail and bright colors. Some are free extemporizations without punctuation, some formal critiques. Marshall loved the Boston music scene, and went to a show most nights during...