On the threshold of a never-ending night, we enter Zimmer90. The architects of this music project are Joscha, Finn and Michi. Half a million users stream their music on Spotify; over 100,000 people watch what the artists from Stuttgart are up to on Instagram. Their music is light and poppy. They describe it themselves as diverse, dancy and vibey. Joscha mostly sings in English. Their concept is to have none. And nothing ever remains the same.