The Montreux Jazz Festival archive is a rich legacy documenting five decades of live music performances. In the frame of the Montreux Jazz Digital Project and in partnership with the Claude Nobs Foundation, the EPFL Cultural Heritage & Innovation Center (CHC) is in charge of digitization, preservation, and enrichment of the audiovisual archives of the festival. Recorded from 1967 using the highest quality professional formats, both in video and multitrack audio, this unique collection has brought together 5,000 concerts representative of the greatest artists and musical trends of the last 50 years. It was inscribed in UNESCO’s Memory of the world Register in 2013. At EPFL, the collection was transformed into an innovation platform and a research infrastructure which is used by the researchers of the school, in many different fields, in particular for digital signal processing, data analysis technologies, or musicology, where recent advances enable automatic recognition of musical structures and their linkage through metadata. However, access to the data for researchers must be strictly controlled because of the author’s rights, and Open Science is hindered by the copyright restrictions which limit access to the data. Through this project, a new prototype version of the secured IT infrastructure has been created, that will allow broader use of this unique dataset across EPFL research communities. Designed in a collaboration between the EPFL Digital and Cognitive Musicology Lab (DCML), the Swiss Data Science Center (SDSC) and the Cultural Heritage & Innovation Center of EPFL (CHC), this new open platform provides the machine-learning partners of the Montreux Jazz Digital Project with a structure that enables remote execution of music analysis and metadata analysis algorithms on large Montreux Jazz Festival datasets, without direct access to the audio/video media files. Therefore, the platform implements a secure way of using the archives for the researchers, respecting the author’s rights and making sure that all users are contractually authorized to use the data. In parallel, a public subset of the collection is available for sharing, which can be used to tune algorithms or showcase and explain the results to larger music lovers’ audience. A revision ("fork") of the Music Explorer application developed by DCML, our secure platform integrates the metadata of the Montreux Jazz archive and an API into the Swiss Data Custodian platform, which controls data use and ownership. The Swiss Data Custodian is a system of services that establish a comprehensive governance framework, seamlessly integrating semantic digital contracts to ensure secure, compliant, and transparent data sharing.