YPKO forum quote:

"There are new drum kits on Tyros 3 and they sound great.Yes it is the same octave button but it has been moved for easier use.Many things have been assigned to the modulation wheel now including the Piano to give an open lid sound and a closed lid sound.ie.the sound is much brighter when wheel is moved downwards.The new super articulated 2 buttons produce sheer magic which you really have to hear to appreciate.Don't just judge the case
for the whole inside has been updated.Far more memory to house the huge samples on some of the voices.New DSP settings for both styles and right hand voices.TFT screen which can be seen at any angle and needs no contrast button.
There were many keyboards at Pakefield and we listened to all of them and nothing to my mind came anywhere near Tyros 3 "