How is the sheet music made? Arinaud, a visitor of this blog, asked me in the comment section: “Which app are you using for the scores ?”.  Well, I decided to tell you all about it. First of all, I record the phone screen while playing a song to  a mp4 video file. Then, I use that mp4 video file as input for a simple program that I wrote in Python using the openCV library. This program runs for a couple of minutes and it outputs a jpg file that is a picture of a long strip of the Duolingo sheet music, as you can see: I could crop and paste sections of this image to make a sheet music like this: S003U001L010 Bicycle Built For Two-DUO But, it's faster to transcribe it with museScore 3, it takes me about 10 minutes to do that. So I open the strip file in the paint app and scroll the strip horizontally while writing the notes on the app museScore 3.  When the score is ready I export it to a *.png file like this: S003U001L010 Bicycle Built For Two-1 That 's all folks.

Update! We have great news! Since early 2025, the Duolingo music course app has been updated to natively recognize MIDI input ! It successfully registers the keys you press (which is awesome!), even though it doesn't currently produce sound through your device's speakers. Everything we've previously published on this page is still totally valid, but now there's an even simpler, more direct way to get set up! You can use a specific sketch for your Arduino Leonardo to take the signals from your piano keyboard and convert them directly into MIDI signals. The Duolingo app understands this perfectly now! You can grab the file for this simplified approach right here on GitHub: [ Link to Arduino sketch ] Improving the Duolingo Music Course Experience: A Practical Approach After three months of studying music with Duolingo without prior knowledge, I've noticed that the course provides valuable skills, such as associating notes on the staff with their names, keyboard positi...

 Compare low A to other notes This post of unit 012 is the last post of section 002. There are 35 songs in section 002. So I have transcribed 82 Duolingo songs up to now. If you find any Typo in these sheet-music, please let me know and I will correct them. I will begin posting section 003 in the new year. Merry Christmas and Happy New Year 2025. S002U012L003 Row, Row, Row Your Boat-1 S002U012L007 O Sole Mio-1 S002U012L010 Spin the Wheel-1

 Play and read the note low A S002U011L003 Major Minor Trick-1 S002U011L007 Swashbuckler-1

 Compare low B to other notes S002U010L003 The Farmer In The Dell-1 S002U010L007 Nocturne No 15-1 S002U010L010 Level Up-1

 Play and read the note low B S002U009L005 Adagio Cantabile-1 S002U009L007 Wedding March-1

 Recognize single eighth notes S002U008L003 Symphony No 5-1 S002U008L007 Sea Shanty-1 S002U008L009 The Entertainer-1

 Compare high F to other notes. S002U007L003 Falling Leaves-1 S002U007L009 In The Hall Of The Mountain King-1

Play and read the note high F S002U006L003 Ode To A Doorbell-1 S002U006L009 Down in The River To Pray-1 

  Practice counting for four beats S002U005L015 New Beginnings-1 S002U005L018 Weekend Stroll-1 S002U005L022 Storming The Castle-1 S002U005L025 Cello Suite No 1-1