Compare C Sharp to other notes S003U019L003 Sea Shanty-1 S003U019L007 Blue Danube Waltz-1 From Wikipedia: " The Blue Danube " is the common English title of " An der schönen blauen Donau ",  Op.  314 (German for "By the Beautiful Blue  Danube "), a  waltz  by the  Austrian composer   Johann Strauss II , composed in 1866.