Jack Hertz Report post Posted August 9, 2016 The Sidrassi Organ has seven pressure sensitive bars you press to express the seven tones within. Use the buttons on the front to scroll each bar through random tunings. There is a master pitch knob, as well as a master modulation knob. There are 42 nodes, six for each tone. Half the six are inputs- one linear modulation and two polar modulations View full synthesizer Share this post Link to post Share on other sites