Gazeuse! is the de facto first album by Pierre Moerlen's Gong, issued in 1976. The title was changed to Expresso for the U.S. release. The album features an all-instrumental jazz-driven sound, notable for the prominent use of mallet percussion, which has little to do with the psychedelic space rock of Daevid Allen's Gong, even though the two bands share a common history. Although the album was issued by Virgin Records under the "Gong" name for contractual reasons, and the name "Pierre Moerlen's Gong" would not be adopted for a couple of years, the lineup involved and the nature of the music are that of the Moerlen-led band.