"A literary and musical form . . . a fusion of music and poetry accomplished at a very high emotional temperature . . . these are different ways of describing the same thing. A gigantic field of feeling . . . that’s a way of describing something enduring, something that could be limitless. How much thought . . . can be hidden in a few short lines of poetry? How much history can be transmitted by pressure on a guitar string? The thought of generations, the history of every human being who’s ever felt the blues come down like showers of rain."