Fourm 4-voice analog synth with polyphonic aftertouch Fourm is a compact analog synthesizer that invites you to play, shape, and perform with unprecedented expression. With its legendary Sequential tone, hands-on modulation, and uniquely responsive Tactive™ keybed, Fourm is a creative partner helping to bring your musical ideas to life. For more information on Fourm visit Sequential at: sequential.com/modern-analog/fourm/