I really liked this book because I enjoy historical fiction and this is a good story. It is a time travel story, involving a 15-year-old boy whose father is very overprotective. He finds Jimi Hendrix's strato guitar hidden in his basement and when he strums the famous chord from "Purple Haze" he is transported back to the 1969 Woodstock concert. He encounters many interesting things, his own father at 15, his uncle who will die only a few weeks from then, girls, drugs and more. He has a mission to fulfill to help his father deal with his brother's death. The language is a little rough only in one part, and justifiably so. The drug message is quite powerful. A really good read.