"With the EL-900 Yamaha have launched a new kind of keyboard response called Horizon touch. You may have already heard about this, but in a nutshell the keyboards respond to pressure exerted sideways on the keys as well as the traditional ‘up and down’ response. As you push the key left or right the pitch changes up or down. For example, the further you push the key right the higher the pitch. Set to maximum sensitivity the pitch can be changed over an octave but of course you can adjust the amount to create the right effect. I found it quite logical to use and after a little practice I achieved some great effects. It is certainly an easier way to bend the pitch than using the second expression pedal as on the EL90. It will probably take the average player quite a while to feel really comfortable with this new technique but it is a great experience – and unique to the EL-900. This kind of keyboard touch is not available even in the synth world.