You Can Use Simple Piano Pro PLUS Totally Free, Bigger Version More Features But Free. *It is the PLUS Version of Simple Piano Pro but Completely Free.* Some of its Features: - 21 Keys. - 15 Sharps. - 3 Octaves. - Total 36 Keys. - Quality And Real Sounds. - HD Sound Quality. - Color Keyboard Option (7 Different Colorings) - Simple And Convenient Design. - No Disturbing Colorings. - 5 Different Sustain Modes. - Pack of 12 Quality Pianos. - 6 Different Blown Instrument Packages. - 6 Different Ringtones Packs. - 12 Different Instruments. - Total 36 Instrument Packs. - Play Rhythm Music with 12 Drum infrastructures. - Add Quality in the Background to the Music You Play with 12 Different Chords. - BPM adjustment for Drums and Chords. - Shape your keyboard according to yourself and your notes with the Flexible Keyboard Sizing Feature. - Many Different Sound Effects. - Ability to Adjust Instrument And Drum Or Chord Sounds. - Placing Note Names on Your Keyboard As...