Voicer is an evolution on sc2's Voicer.ar. The SC2 voicer class did not implement MIDI. In contrast, a DDW Voicer, can be placed in a VoicerMIDISocket, which includes all the necessary intelligence for note on/off, continuous controllers, and pitch bend messages. Multiple sockets can be created on the same channel with different Voicers and different key ranges, allowing complex keysplit configurations to be created.