I believe they are called phased pads. I even have a preset in zynaddsubfx which is called Jarre. Its shame there is only one Jarre preset in zynaddsubfx. I have a soundbank for Synth 1, that has around 60 Vangelis presets. Voor de synth freaks: http://www.b-wave.be/blog/jean-michel-jarre-talks-abou...