When Eranos was 12 years old, his taste in music was very broad. They ranged from Mozart, Vivaldi and Beethoven to the doo-wop of the 50's, Rock & Roll by Elvis, pop by The Beatles, country by Johnny Cash, protest songs by Bob Dylan and even modern Belgian artists.
But 1 of the musicians came from a different angle. Kurt Cobain. Nirvana was one of the only music bands that Eranos could enjoy as the electric guitars started screaming.
He took this with him in writing and producing 'Hey'. This is a nod to his youth and how he behaved him around others. He apologizes for his behavior, even though he thought he didn't do anything wrong as a child.