Almost the entire surface of the controller is covered by its 8 by 25 (or 8 by 16 in the case of the LinnStrument 128) grid. The fingertip-sized fields are each able to measure and transmit velocity, aftertouch, x-position relative to the entire row (or any subset thereof), y-position within a field, as well as release velocity. It is highly adaptable and can also function in more traditional MIDI configurations, accommodating sound generators that don't yet support MPE and allowing them to be played more expressively.