NyxMusic is an open reference directory for music metadata, bringing together information about performers, releases, tracks, and genres. Its catalog is designed to help visitors explore music and consult details such as release dates, edition information, identifiers, and genre classifications. The site organizes its content into dedicated sections for releases, performers, and genres, with listings that make it possible to browse recent releases and discover artists across a wide range of styles.

The catalog reports 6,949 tracks, 1,724 releases, 885 performers, and 73 genres. Its genre listings include hip-hop, rock, pop, metal, electronic music, dance, R&B and soul, punk, and other categories. Recent entries feature singles and albums by both Russian-speaking and international artists. NyxMusic describes its service as a source of reference information about releases and recordings, rather than presenting itself as a music streaming platform. The website also provides information about its catalog, terms of use, data processing, cookies, and a contact channel for rights-holder claims.