Triptycon Op. 129 is a large (30 minutes) work for organ and three percussionists by Kjell Mork Karlsen. The piece is in three movements as listed below, each utilizing a different set of percussion instruments.Number of players: 4Difficulty: AdvancedInstrumentation1. In the Beginning Was....Player 1: 2 snare drums, tenor drum, 3 woodblocksPlayer 2: 3 tom toms, 3 temple blocksPlayer 3: 3 timpani, cylinder blockPlayer 4: Organ2. And the Light Shines....Player 1: Glockenspiel, crotales, chimes (shared with other two players)Player 2: Glockenspiel, crotales, chimes (shared with other two players)Player 3: Glockenspiel, crotales, chimes (shared with other two players)Player 4: Organ3. And the Word Became....Player 1: 3 suspended cymbalsPlayer 2: 3 suspended cymbalsPlayer 3: 3 suspended cymbals, wind chimes, 2 tam tamsPlayer 4: Organ