S002U036L005 Blue Danube Waltz - Oscar's version-1 Hey there! Want to see what songs we've got (and what's coming soon)? On  desktop , just look for the blue  " Table of Contents "  link in the top-left corner, right under "DUOLINGO SONGS." Easy peasy! If you're on  Android , tap the  three horizontal lines  (menu icon) in the top-left corner. A menu will pop up, and you'll find the  " Table of Contents "  link there.

 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.