One interesting thing I've noted about synth. They are indispensable to EDM and pop music. But the vast majority of that music is harmonically extremely simple. Sometimes it just stays on one chord. I know there is a lot more avant garde stuff out there....but I haven't really found more advanced jazz harmonies in a synth context. Maybe it's because synth sounds are so rich that overlaying sounds with complex chord structures would create too much cacophony? Anyway, it's just a general observation that it seems that the rich sounds of synth tend to lead to relatively simpler harmonic structures. Maybe it's similar to really heavy metal-- the use of "5" chords-- just root and 5th, because if you add a 3rd or 7th it starts to sound muddy when you are that distorted and heavy. I've been thinking about how I might put some synth compositions together that are more harmonically complex, more jazzy, but haven't actually done it yet....not sure how it will work out.