Hi I recently purchased a CGP 700. I think it is a great Keyboard. The sound quality, functions and ease of use are unbeatable. The one function that is not good is the Auto Harmonize function. When engaged it sounds really bad, especially in Duet or octave mode. I thought it might be a defect in my instrument so I exchanged it for another but it is no better. It is hard to explain but when a key is first pressed, there is a note sounding before the first melody note but not the following notes until a change in chords and then it happens again. My reference is a DGX 640 in which this weird sound did not occur. I spoke to Casio Technical personnel but the people I spoke to knew almost nothing about the Keyboard. If anyone has a CGP 700 I would be interested to know if this is how the Auto Harmonize function is supposed to sound. Thank you. Tony