Indian Harmonium is a free Android application developed by Ferhat Evak, offering a comprehensive set of features for music enthusiasts. The app emulates the harmonium, a popular free-reed aerophone in India, known for its versatility in classical, light, film, and folk music genres. With a professional octave range from C2 to B5, expandable to C#1 to A#6 with scale changer, Indian Harmonium caters to musicians of all levels.

Users can enjoy various functionalities such as a scale changer, coupler settings for both left and right hands, drones from C3 to B4, and effects like reverb, chorus, tremolo, and ADSR. Additionally, the app provides tabla rhythms, record and audio export options in formats like wav, flac, and ogg, a metronome, key noise simulation, MIDI keyboard support, and minimum latency for a seamless musical experience.