Sacred flutes are blown ("Windim Mambu'') to make the cries of spirits by adult men in the Madang region of Papua New Guinea. Pairs of long bamboo male and female flutes are played for ceremonies in the coastal villages near the Ramu River. The Ravoi Flutes from Bak are accompanied by two garamut carved wooden slit gongs. The Waudang Flutes from Manam Island are accompanied by two large and two small slit gongs and six singers. The Jarvan Flutes from Awar are accompanied by a shell rattle. The Mo-mo resonating tubes were recorded in the Finisterre Range. There are the cries of six different pairs of flutes and one pair of conch shells from the Ramu coast, two pairs of Waudang Flutes from Manam Island with singing and Mo-mo resonating tubes from the Finisterre Range. Occasional percussion is provided by wooden slit gongs and hand drums. These recordings were made in 1976.