How to create these wonderful tapestry synthesiser pads from the good old 70s and 80s on digital plugins these days.
- Take a simple synth string sample or organ pad
- Add a phaser and/or flanger effect on it and let it evolve slowly with some LFO (as if the analog hardware did not stay constantly in tune)
- Add some Reverb and Delay through a send effect.
There a good old sounding synth pad.