I wonder if it's improvised or scripted. At least the choir part must be scripted, but the rest of the song seems like an awfully long sequence of arbitrary non

I wonder if it's improvised or scripted. At least the choir part must be scripted, but the rest of the song seems like an awfully long sequence of arbitrary nonsense to memorise. It's not impossible though. When I was 5 years old, I used to listen to one particular record by Victor Jara about three times a day. I didn't know a word of Spanish, but I could recite something resembling those lyrics from start to finish. After learning a bit of Spanish decades later, I listened to that record again. Imagine my utter confusion when the words I thought I had remembered turned out to be not words but arbitrary sequences of sounds unrelated to word boundaries :)