"The Blue Danube" is the common English title of "An der schönen blauen Donau", Op. 314, a waltz by the Austrian composer Johann Strauss II, composed in 1866. From Wikipedia
The transmission on May 31, 2025, marks Strauss' 200th birthday and the 50th anniversary of ESA's founding, correcting its omission from the Voyager Golden Records.
