The goal of the Shared Open Vocabulary for Audio Research and Retrieval (SOVARR) project is to investigate if and how audio research communities would benefit from using interoperable file formats, data structures, vocabularies or ontologies, what are the primary needs of MIR researchers, and what are the main barriers to the uptake of shared vocabularies. The project aims to investigate user needs, rework a previously created Semantic Web ontology reflecting these needs, and increase its visibility focussing on the music informatics field.