Link to repository: https://github.com/deezer/spleeter
Credit goes to Romain Hennequin, Anis Khlif, Felix Voituret and Manuel Moussallam. There is a mistake in the video where I state that these people are MIT students. It was simply using an MIT-License
They published this in their paper "SPLEETER: A FAST AND STATE-OF-THE ART MUSIC SOURCE SEPARATION TOOL WITH PRE-TRAINED MODELS
" at ISMIR 2019 (International Society for Music Information Retrieval).