Parents die. At any age, the loss of a parent marks a profound and often overlooked transition in life. When the parent leaves a young child to grow up without guidance, nurturing, goading, and love, the event becomes a landmark, a defining moment.

When authors Leslie Simon and Jan Johnson Drantell learned of their common experience of losing a parent at a young age, they set out to discover the experiences and effects that unite those who have lived through this same signal event. "Every tragedy has its before and after, " they write. "One day a child's life feels normal, the next it feels as if the world has torn apart."

This is a rent that can never be repaired, a wound that despite the passage of time and the coming of age never truly heals. In "A Music I No Longer Heard, " Simon and Drantell have collected the voices of seventy men and women who share this poignant life's journey. "Even three or four years later, " the noted filmmaker Ken Burns remembered, "my wish would be that my mother would come back. I think I just submerged the fact that she had died."

As life progresses, the authors point out, every new experience is filtered through the lens of loss. The dead parent remains a vibrant presence in these lives: "My relationship with my father doesn't seem finished, or sealed." Or in the words of another, "I feed myself with memories of my mother. I think about her and it is just a wonderful feeling."

Most of all, these children of loss experience adulthood differently, always compensating in some way when choosing a mate or a career, in developing the ability to trust and to love, and in the willingness to take risks and live life to the fullest. "Maybe my dad'sdeath, in some small way, " one woman wonders, "helped me to wake up and see what the world is, what the world could offer."

What emerges from these stories is a moving portrait of the many and various ways that the death of a parent shapes one's life. "A Music I No Longer Heard" will be therapeutic for those who have lost a parent and will enable those who have not to understand the complex emotions that surround this all too common experience.