I discovered he has a vast trove of videos on youtube and used them for reference!
I first saw Sean Derrick Cooper Marquardt through this beautiful photoshoot with my friend Sylva; she created a collection of attire pieces for him inspired by one of his shows. As well as being a constantly producing active musician, Sean is a model with Indeed Models, a Berlin company run by women.
You can buy his extensive discography on bandcamp.
He has has released over 500 recordings as solo artist or collaborative artist, as well as creating the S&M Accidental Orchestra. His Accidental Guitar sound is completely unique and haunting, a drone-like power hum of mysterious noises and spoken words.
He is a great example of the kind of rockstar who has been a Berliner for years, working non-stop and touring the world, making a serious repository of creative work. Now, with the second/third lockdown dragging on, performers and creators need both emotional and financial support more than ever.