The4yearoldchild is a continuing series of audio-portraits, documenting a world through child's eyes. Ian Epps finds the4yearoldchild Courtside, entertains the idea of an identity of a child, constructed out of sound. Understanding that humans are complex filtering machines, Courtside is the4yearoldchild's experience of playing a game of lawn tennis. Developing a vocabulary of this activity, the child relies on memory, and an understanding of physics, weather conditions and human behavior.