The digit that remains inactive during harp performance is the small finger, also known as the pinky or fifth finger. While the other four digits of each hand are employed to pluck the strings and create musical notes, this particular digit typically refrains from actively participating in the playing process. This non-participation stems from anatomical limitations and the specific techniques developed for harp performance.
The deliberate exclusion of the smallest digit offers several advantages to harpists. It allows for greater precision and control with the other fingers, leading to a more refined and articulate sound. Historically, harp technique has evolved around the strengths and dexterity of the thumb, index, middle, and ring fingers, optimizing for speed, clarity, and complex harmonic structures. Focusing on these fingers enhances overall hand position and reduces strain, allowing harpists to play for extended periods without fatigue.