Punk rock's poet laureate, Patti Smith ranks among the most influential female rock & rollers of all time. Ambitious, unconventional, and challenging, Smith's music was hailed as the most exciting fusion of rock and poetry since Bob Dylan's heyday. If that hybrid remained distinctly uncommercial for much of her career, it wasn't a statement against accessibility so much as the simple fact that Smith followed her own muse wherever it took her -- from structured rock songs to free-form experimentalism, or even completely out of music at times.