Kiefer is one of the US jazz and beat scene's most exciting artists with a broad international fanbase. He won a Grammy for his collaboration with Anderson .Paak, and has also collaborated with SiR. Between Days is the final instalment in Kiefer's trilogy of EPs (with 2019's Bridges and Superbloom). With the exception of the final track in the EP, all the songs on Between Days were recorded in quarantine, between 2020 and 2021. While the EP reflects the time in which it was written and recorded, Between Days is about transition, nostalgia, finding purpose, and remaining hopeful.