New Products, EDM News Unofficial Firmware Mod Adds Arpeggiator, Polyphonic Sequencer To Sequential Prophet Rev4 Tuesday, October 13, 2026 The project is designed to expand the Rev4's performance capabilities without requiring hardware modifications.… Read More Unofficial Firmware Mod Adds Arpeggiator, Polyphonic Sequencer To Sequential Prophet Rev4 Tags: SynthArpeggiator