For American non-travelers, it was the first exposure to musical idioms such as music produced by a gamelan. In 1977, a few of the recordings were chosen for the Voyager Golden Record, and sent into outer space aboard the Voyager spacecraft. In 2008, one of the first Explorer Series albums, "Music from the Morning of the World" (1967), comprising early field recordings that the British musicologist David Lewiston had made in Bali in 1966, was added to the National Recording Registry by the Library of Congress.