https://soundcloud.com/neil-sequeira-696492873/iv-1-use-pyramid-construction?si=de5d979b7fe24c85b443d9a674a5550b
What I see in different shades of gray, from behind my reading glasses
https://soundcloud.com/neil-sequeira-696492873/iv-1-use-pyramid-construction?si=de5d979b7fe24c85b443d9a674a5550b