Just so you all know I was there today to see the Bk5 and saw that demo live much better live then in that video , i thought it was empressive for the price it has a new piano 2 section the tracks your playing just like you would be playing a piano and arranger funchions and tracks right along even complex chords this is very good , sounds pretty good it sounded a little thin opn some patches I spent about a hour with the keyboard the keys are not full sized but much larger then mini over all it was pretty cool not I have to have one kool but I could see using it I felt as a playable keyboard much better then mini , the screen display small no touch screen at all , I was still stinging from the 35.00 parking fee I had to pay crazy I have never seen so many people at a Namm before , I think Roland has a good un it for the Price my ears say the sounds on the mini and the Bk5 seem to be thined out a bit not the thickness I am used to hearing seem to be a trend , not new sounds in the Bk5 that arnt in the bk7 mod it does track a padel board very well pk-6 unit for the price I feel much better then the mini it feel more like a keyboard and not a toy read up on piano 2 func it is pretty cool.