From the YouTube video description -
"ALMA (Atacama Large Millimeter/submillimeter Array) is a state-of-the-art radio telescope developed and operated by 20 countries and territories in East Asia, Europa and North America in cooperation with the Republic of Chile. Connecting 66 parabola antennas deployed in the Atacama Desert in northern Chile, ALMA works as a giant radio telescope with a diameter comparable to the size of the Yamanote Line. ALMA detects faint radio waves emanated by distant celestial objects to study the origin and evolution of galaxies, stars, and planets. Obtaining a clue to the origin of life is another goal of ALMA.
In 2011, ALMA observed radio waves from a dying star “R Sculptoris.” The ALMA MUSIC BOX made use of this data, and translated the 70 different radio images onto 70 musical discs."