When I was a kid, I was fascinated when the piano tuner would come to visit. Sitting at the bench, the tuner would bend the strings of my mom’s upright piano, looking for a sound quality I never fully understood. Many years later, the documentary Pianomania reawakens the same fascination, except with high stakes and fragile egos. There are moments of quiet brilliance where directors Lilian Franck and Robert Cibis communicate the difficulty of tuning for a top concert performer. For the most part, however, the skill and art of tuning a world-class piano remains frustratingly elusive.