Always wanted to play the Piano or the Electric-Organ? Try HappyEO! It will turn your computer into a advanced Electric-Organ! A beginner can use it to learn musical theory and recognize score, and an expert can use the computer keyboard to play beautiful songs! HappyEO is a virtual instrument with your computer keyboard and mouse. It has many features only exists in advanced electric-organ. It's easy, funny and powerful. Create your own songs in minutes.Features Play with your computer keyboard and mouse! Play with your two hands like piano! 61 keys, 128 voices, 11 effects, include dual-voice and tremolo. Support reverb, chorus, and modulation (vibration). Support split keyboard. Support octave shift and transpose. Support 15 types of chords and more. Support Auto-Accompaniment, fill in, synch start. MIDI Recording and Playback Support external MIDI keyboard! Can be used as virtual piano in Cakewalk! Support Karaoke play. Can Delete melody tracks in a MIDI file to get a karaoke play MIDI song! Multi-tracks recording. Support macro (OTS -- One Touch Setting) Drum mode. Customize key definition. Skins can be changed. Demo songs and full help included.