Learn Harmonium is a free application developed by SDK Developers that aims to teach beginners how to play the harmonium. This app is designed to provide an interactive and comprehensive learning experience to users who want to learn the basics of playing the instrument. The app is available on the Android platform and can be downloaded for free.

The app includes a series of lessons that cover the basics of playing the harmonium, including how to play different scales, chords, and melodies. Each lesson includes detailed instructions and interactive exercises that allow users to practice what they have learned. Additionally, the app includes a virtual keyboard that users can use to practice playing different notes and chords. Overall, Learn Harmonium is an excellent app for beginners who want to learn how to play the harmonium in an interactive and engaging way.