You can tune a harp, and then you can regulate a harp. The latter is a more intricate and precise tuning. If that’s what you need, Rachael Galbraith can help you. Galbraith is a certified harp technician, making her one of a small cohort of professionals trained to execute the minuscule adjustments needed to regulate a harp. Scienceline’s Leslie Nemo joined Galbraith for one of her appointments and learned a thing or two about the mechanical side of the musical instrument.