<p>Currently, musicians rely on their sense of hearing and notation cues on sheet music to precisely perform musical dynamics. However, other tools can help visualize music dynamics efficiently and enable musicians to create, emulate, and perform more effectively. Accordingly, we developed a Musical Dynamics Visualization Method (MDVM) interface program to visualize the amplitude of both a pre-recorded track and the real-time sound of the user playing the score. The interface layers the recorded visuals over real-time visuals to help the player precisely replicate the intended sound. The interface was developed for solo performances to allow them to carefully focus on amplitude changes. This novel MDVM method demonstrated impressive effectiveness in enhancing the expression of musical dynamics. Specifically, it reduced musical dynamic errors by approximately 256%, enhanced music education, and deepened students' emotional engagement. This method, thus, contributes to a more holistic and effective learning experience through its exceptional outcomes.</p>