GL-ORG Lite is a free Android music app developed by Fegac Studio. It is a comprehensive music app that offers 15 different instruments and 15 different rhythms, each with two variations, making a total of 30 rhythms. The app also features four different sustain modes, a two-octave keyboard, a pitch bend key, and a tempo slider. The bass control and automatic login between two variations make the app more user-friendly.

The app has an audio spectrum feature that adds visual richness to the music experience. It also displays note names on two different keys, which can be turned off if needed. The app has an end feature that automatically mutes at the end of the song. The app is designed to help users learn music effectively. The developer encourages users to provide feedback and keep the app updated for better performance.