and this is when ketamine hit the mass black market. you can see the ecstasy movement very shortly accelerating before ketamine. ecstasy and other amphetamines were the drugs which were the most consumed besides cannabis and lsd i guess. but the first drug for electronic music is MDMA.
ketamine is dissociative and interferes with the musical perception very badly. it confuses people and seperates them from the crowd, since they perceive the music wholely different than anyone else. the consumer can perceive a set with several ketamine consumation differently. it's confusing people from each other away. it's not like this with any of the other listed drugs up there, the people were overdosing or treating the drugs bad in a not optimal environment for it amongst others, but these drugs intensify the experiences and make the people relaxed if not overdone. it's closely related to the dynorphin theory. people who understand that blogpost will see fast the intention behind the mass distribution of ketamine. ketamine has deep roots especially in berlin club culture, which is one of the most important techno cultures.
https://www.hkmj.org/abstracts/v24n2/175.htm 