“Each piano is unique. Each feels different beneath your hand and yields a new geography of sound. Each room or hall accepts that sound in a completely different way, and if, within that room or hall, the piano is moved, the sound will change, as it will if the hall is full of people in thick winter coats, or half full of people in light summer dresses. You must adjust your touch, your tone, your range; you must LISTEN, for even the most familiar passages can become unfamiliar, challenging, strange.”