The Chord is a five-note chord that slowly decays over 60 seconds. The data is stored as sound waves in 35.698750019785145, 139.70158723402605 (GPS coordinate) from 18:00 JST, December 28, 2021, to 19:00 JST, January 23, 2022, using a storage device called “acoustic delay line memory,” a form of computer memory used in the 1950s. The currently stored chord can be checked on the following website: http://memory.alternativemachine.co.jp