Visitors who walk the Grand Canyon at dawn expect to find beauty and awe, but they don’t expect a grand piano perched on the rim. Musician Will Munroe is on a quest to play improvised music, from sunrise to sunset, in as many national parks and monuments as possible. It’s his way of calling for stewardship and protection of threatened public lands. For this installment of Eats and Beats, stories about food and music, KNAU brings you the sound of a grand piano in the nation’s grandest park.