Arperk is a dynamic arpeggeator composed of three interconnected, beat-synchronized engines that generate MIDI notes-and each engine has its own independent sequencer. Individual outputs can be routed to different internal and external destinations. With Arperk, one engine could send MIDI information to a soft synthesizer (like NI Absynth), the second one might transmit to your EXS24 sampler in Logic Pro, and the third one (via a MIDI interface) could head for your Roland Juno hard synthesizer.