Hi Vijeya,

I'm glad that you have asked this; you raise an interesting question. As someone that loves listening to music, playing it, and creating it, a tuning "app" might be something interesting to add to the music section and discuss. There's a lot of science and math behind music, and tunings/tuners may be a good place to start "chipping away" at it.

Your one question has inspired me to ponder how we can make the music content on Khan Academy better for the world. Thank you for posting! Feel free to add to your post in the future or make a comment here with any ideas that you would like to share; we love suggestions.

Happy Learning!