Have you checked out bitwig? I love the help overlay. Explains everything while you can turn the knobs.
Same for their graphical programming thing ("grid" I think). A nice hybrid between skeumorphic and digital with e.g. stylized wires hanging down in gravity, but becoming transparent when crossing components.
Also super nice that most "visualizations" are also interactive (see the direct manipulation of the envelope at the end of the following vid)