When producing explanatory videos, instructors often face particular challenges when they want to add a soundtrack. In research on educational videos and explainer films, little attention is paid to the special role of sounds and music (Laaser and Toloza 2017): In practice, while there are many repositories for free audio files, such as YouTube, Sound Cloud or the Free Music Archive, finding and producing good-quality music for educational contexts is often difficult (Laaser and Toloza 2017): Music for explanatory videos should support the respective educational message and instructors often lack specific audio-/visual production skills. The video addresses this issue by presenting the project OER Tracks. The aim of the project is to provide instructors a variety of soundtracks for educational videos. OER Tracks includes thirty open licenced tracks by ten up-and coming artists from a wide variety of musical and cultural backgrounds based in North-Rhine Westphalia (Germany). We present a creative and illustrative laying technique video, in which audiences join Dr Jamal Groenstein, instructor at a local university, in how he explores the project OER Tracks as well as the vibrant, unique ORCA.nrw Network of OER enthusiasts, employees, and consultants which promote OER in higher education and supported the project. Funded by the North-Rhine Westphalian Ministry of Culture and Science, the ORCA.nrw Network offers various services to both (university) teachers and students. They inform instructors, such as Dr Groenstein, about OER, offer OER training and support, and promote OER-friendly curriculum development. The Network is part of a larger state-funded project entitled Open Resources Campus North-Rhine Westphalia ORCA.nrw (see Eube et al. 2017). We argue that projects such as OER Tracks, which are embedded in manifold personal and professional interrelationships and networks, contribute to the much-needed popularisation of OER in German higher education (Marín et al. 2020, p. 86). References: Eube, C, Kobusch, A, Rosenthal, F, Scherer, E, and Spaude, M, 2021, ‘Das Landesportal ORCA.nrw. Eine Plattform – 37 Hochschulen – ein Netzwerk’ in Gabellini, C, Gallner, S, Imboden, F, Kuurstra, M, & Tremp, P (eds), Lehrentwicklung by Openness – Open Educational Resources im Hochschulkontext. Dokumentation der Tagung vom 06. März 2021. Pädagogische Hochschule Luzern. pp. 23-27, https://doi.org/10.5281/zenodo.5004445. Laaser, W, and Toloza, E A, 2017, ‘The Changing Role of the Educational Video in Higher Distance Education‘, The International Review of Research in Open and Distributed Learning, 18(2). pp. 264-276, 10.19173/irrodl.v18i2.3067. Marín, V, Zawacki-Richter, O, and Bedenlier, S, 2020, ‘Open Educational Resources (OER) in German Higher Education (HE). An International Perspective’, European Distance and E-Learning Network Conference Proceedings, 10.38069/edenconf-2020-rw-0010.