Ron and I had a great afternoon today. At first I thought the box which came from Yamaha last week was a 76 key and told Ron that's what I received. When he came to my store today I know he wasn't disappointed finally having an opportunity to play the new Tyros5. I have both the Tyros4 and Tyros5 side by side set up in my store. Ron and I compared the Concert Grands and easily came to the conclusion that the T5 piano has a lot more dynamic range and cutting power. I have a piano teacher at my store that plays a lot of Cuban music and was very impressed with the U1 upright piano voices including the 1 and 2 octave up versions. It went nuts playing the SA2 flamenco guitar voices. These new SA2 voices allow for all the dynamics as if you were actually playing the octaves with small amounts of delay when playing soft and less and less as the keys are played harder.