He has published extensively on music videos and audiovisual studies. His publications on music video include the book Music Video After MTV: Audiovisual Studies, New Media, and Popular Music (Routledge 2017),which covers some core issues in the study of music video-including the history, analysis and audiovisual aesthetics of music video-while also specifically engaging with the digital afterlife of music video online. Furthermore, Korsgaard is also the editor in chief of the Danish online film journal 16:9 (16-9.dk) which publishes articles in both Danish and English on film, television and streaming series, documentary, music video and more, also including the publication of scholarly video-essays.