The piano is a recurring symbol of Mary’s internal state, tracing her development from rigid self-control to authentic emotional expression. At first, the instrument is a refuge where she can pursue accomplishment through disciplined, technical practice. Her playing, however, is mechanical and lacks feeling, mirroring her own repressed inner life. Elizabeth astutely observes this, stating she would “rather listen to a piece played with happiness and a spring in its step than to all the well-drilled perfection in the world” (16). This contrast establishes the central conflict of Mary’s character arc.

Later, the piano becomes the site of Mary’s greatest public humiliation at the Netherfield ball, where her father cuts her performance short, reinforcing her belief that she is doomed to fail. This trauma is echoed when she plays the same piano while staying with the Bingleys, and Miss Bingley alludes to her initial humiliation. The impact of Caroline’s words demonstrates her continued ability to verbally injure and demean Mary.

However, the symbol’s meaning transforms again when, after stopping playing piano in public, she returns to the instrument at the Gardiners’ house in London. After her emotional breakthrough reading Wordsworth, she plays with a “tremendous attack, quite unlike her usual precise style” (159), signaling a deep shift in attitude. From a tool for earning approval through sterile perfection, the piano becomes a medium for Mary’s liberated feelings, completing her journey of Emotional Awakening as True Self-Knowledge.