One thing that I have noticed all these years is that certain countries have certain 'sounds'. For example Israeli scene has a much more focus in melody both then and now. Scandinavian countries have a darker sound either is dark psytrance, goa or progressive. UK was highly psychedelic back then. Germany has a more dry sound and USA more freeform. South Africa and Finland have their own unique sounds. Of course there are exceptions to the rule. For example there are artists from Germany that are highly melodic, but the majority follows the rule IMO.
The question is if you believe that a certain country or culture affects the music or it's just a trend that everybody follows? For example why Sweden has a darker approach? Is it because of the climate or the psychology of Swedish people or did they follow the scene?
Why South African psytrance is powerful? Does it related to the people that live there or artists are just inspired by some pioneers?