A musical composition designed to take well over 600 years to play has gone through its first chord change in seven years.
원문출처 : https://www.cnn.com/style/article/chord-change-composition-scli-intl-grm/index.html
원문출처 : https://www.cnn.com/style/article/chord-change-composition-scli-intl-grm/index.html