This thesis project is comprised of two parts. The first portion contains my research surrounding Michael Bennett’s creation of A Chorus Line. I primarily focus on his choreographic methods for “The Music and The Mirror,” performed by Donna McKechnie, who originated the role of Cassie. I investigate the creative process and personal ties between Bennett, McKechnie, and A Chorus Line to gain a better understanding of how and why Cassie’s character transforms in “The Music and The Mirror.” I connect literary resources with my own choreographic analysis to enhance my understanding of the dance solo and bring attention to the relatability of Cassie’s character. My findings convey how McKechnie’s personal experiences and insight are integral to ...