Arpeggio-Sequencer is a project mainly written in Java, it's free.
Sequencer designed to step multiple synth arpeggio triggers
A simple project to step multiple synth's arpeggiators, thus doubling the arpeggio sequence. Designed for the Korg Mono/Poly, though will work with any synth with an Arpeggio Trig In.
Mode switch selects sequence pattern