I mean this more qualitatively than what the song is named or referred to as. Looking for what best musically encapsulates or simulates the effects for a class of drugs.
Like I would say the musical equivalent of codeine or morphine maybe is Gymnopedie #1 but also much of Satie’s work is opioidergic/narcotish in my opinion
Coil has an album of four tracks each designed to replicate the effect of specific psychoactive drugs:
1.“7-Methoxy-β-Carboline: (Telepathine)”
2.“2,5-Dimethoxy-4-Ethyl-Amphetamine: (DOET/Hecate)”
3.“5-Methoxy-N,N-Dimethyltryptamine: (5-MeO-DMT)”
They are remarkable meditative pieces even without the drug angle but if you are familiar with psychedelics it might take you a little further.