In his intro to this song on Live at the Portland Arms (the first known live performance of the song,
01 November 1978), Robyn summed it up as "a song[...] of total disgust and alienation from humanity"
From video posted on Robyn's Facebook
Human Music - Live From London - June 9, 2022
I wrote Human Music in Cambridge on a dark windy Sunday evening in February 1978. In the Soft Boys we recorded it three times at least that year. It was my first truly dismal song, stepping away from the hyperactive mania that was our hallmark around that time. We were very loud at that period - Kimberley’s guitar and mine were locked in a Fender duel, which he always won as he was a louder and better player than I was.
The angels - what can you do about them? They’re pests of a kind - rats of the air, like seagulls. They can give you reassurance, but always at a price: surrender to a principle, surrender to a phantom, surrender to faith: jeez - do I have to? But, of course, the angels know best…