Drawbar Organ Demo is a free Android app developed by fmrietti that emulates the tonewheel 9 drawbar organ. It comes with 33 presets and a 2-octave keyboard that can be shifted on 5. The app has commands similar to the B3 and Legend organs, allowing users to have a similar experience to these iconic instruments.

The app's interface is simple and easy to use, with all the necessary controls for adjusting the sound and tone of the organ. The presets cover a wide range of styles, from jazz to rock, and can be easily customized to suit individual preferences. The keyboard is also responsive and allows for accurate playing, making it a great tool for musicians and enthusiasts alike.

Overall, Drawbar Organ Demo is a fantastic app for those who want to experience the sound and feel of the B3 and Legend organs on their Android device. With its user-friendly interface and customizable presets, it is a must-have for any music lover.