Young-Hae Chang Heavy Industries is a Seoul-based Web art group consisting of Marc Voge (U.S.A.) and Young-hae Chang (Korea). Their work, presented in 17 languages, is characterized by text-based animation composed in Adobe Flash that is highly synchronized to a musical score that is often original and typically jazz. In 2000, YHCHI's work was recognized by the San Francisco Museum of Modern Art for its contribution to online art. Their pieces are characterized by speed, references to film, concrete poetry, etc. Their work is sometimes called digital literature or net art, but there is no consensus.