Function Loops Progressive And Psy For REVEAL SOUND SPiRE | 2MB Progressive & Psy For Spire offers 50 Futuristic Synth Presets for Trance producers. Freshly designed pre-programmed and ready to rock your next production. The bank will be useful for Progressive Psy, Psy-Trance or Progressive Trance. Our sounds are being used in multiply hits of Psytrance scene.