Heavily stoned. Two long floating tracks of synthesizer drones, burbling liquid tones, elongated mind-manifesting noises, and, yes, what sounds to be pigmy chanting. A pity they didn't ditch the p-word and go for Baka - it would have still worked in Japanese. Whatever, political correctness aside, this is the needful third installment of y brawd's tripped out Hanadensha postings (see here and here).
Prepare for a journey deep into inner space. Mind how you go now.