TCM tonight offers an evening of movies about music – not movie musicals, but films capturing the energy and evolution of rock music. And how rapid an evolution it was. The evening begins with 1968’s Monterey Pop, chronicling the first major music festival,1967’s gathering at Monterey, where Jimi Hendrix, Janis Joplin, Otis Redding and others all broke through as major stars. The evening ends, at 1:30 a.m. ET, with 1970’s Woodstock, which famously captured the peace, love, music, drugs and mud at 1969’s Woodstock Music and Arts Festival. In between those two seminal films are two others, the Bob Dylan documentary Don’t Look Back and the Rolling Stones concert movie Gimme Shelter, a disastrous post-Woodstock event that resulted in the murder of a concertgoer, and the death of the peace-and-love Woodstock era. Watch them all. And listen closely.