These four elementary compositions connect heartbeats with original music, time, love, and nature.

The heartbeat is the most basic, beautiful metronome. It is such a powerful, audible representation of life and of the human experience.

"This intervention is a coping mechanism and a way for parents to remember their kids when they're gone," Schreck, 35, tells PEOPLE

“It's life. I cannot explain why it just sort of calms me down."

Nothing can heal the grieving heart of a parents whose lost the child but it seems there is comfort and solace to hear the once healthy beating heart of that child long after they are gone. Brian Schreck is a music therapist at the Norton Cancer Institute in Louisville, Kentucky. Brian is the man behind the very emotional music.

Schreck has hundreds of recordings of his patients, many of them including the sound of their heartbeats. “It’s like building up a reservoir of a person,” he says. “Their laugh, their voice, their heart.”