The keys are the most important feature for a MIDI controller keyboard: They transport your playing and musical ideas into the computer. As the SE25 is designed to be ultimately mobile and fit in any backpack, there was simply no room to fit full-size keys. But still we wanted it to be playable well. So we developed a new velocity-sensitive mini-keybed for the SE25. Despite these keys’ miniscule dimensions, you can play them expressively with a defined and firm feel. What’s more, a choice of three different velocity curves allows you to adjust thekeyboard response to your playing style. These keys are ready for action!  
Simply press the dedicated “2” button to momentarily shift the octave, add an octave or harmony layer while you play – or switch to a different channel: The unique Part Two feature will enable you to play in ways not even possible on keyboards with many more keys! What’s so special about this? Well, the moment you let go of the Part Two button, the SE25 reverts back to its original settings. So you can toggle back-and-forth between two different keyboard configurations in realtime. A fun performance feature!
The “2” button is assignable to Octave, MIDI Channel, Transpose, Layer and Latch or a combination of these features. Pitch Bend, Modulation and Sustain are key ingredients for dynamic keyboard performances. So we found a way to shrink the controls to size and put them right at your fingertips. Six buttons to the left of the keyboard are pre-assigned to octave shift, transpose and sustain. Don’t need transpose? Then assign the transpose buttons to Pitch Bend, MIDI Volume, Pan, Track* or Patch* change instead. And the “S” Sustain button can alternatively be used to control modulation.