Reharmonize

Reharmonize is a web-based jazz tune recommender designed to help users discover jazz compositions with related chord progressions. The platform addresses the needs of those interested in exploring jazz repertoire by enabling searches for tunes that share harmonic features or structural similarities. It is positioned as a tool for finding new pieces based on what users already know, making it relevant for learners, musicians, or anyone seeking to expand their familiarity with jazz standards.

The service offers several features to facilitate musical exploration. Users can search for tunes, browse by composer, and filter the catalog using criteria such as chord changes, key, feel, and time signature. Specific harmonic traits—such as blues forms, modal tunes, ii–V heavy progressions, modulating structures, and various cadences—are available as filters. The platform also includes a chat feature that allows users to interact with the catalog, receive guided walkthroughs of chord changes, and ask about any tune listed. Additional resources include essays and blog articles on topics like improvisation and practice techniques, as well as a "Tune of the Day" highlight.

Reharmonize is delivered as a free web application, requiring no account or payment, and is free of advertisements. The content is original and created by Ethan Tai, with sharing permitted if attribution is given. Users can subscribe to a free newsletter for updates about new tunes and articles. The tool has been featured in a newsletter with a substantial subscriber base, indicating some recognition within its community.

Overall, Reharmonize serves as a specialized resource for those interested in jazz music, offering tools for repertoire discovery and learning through a user-friendly, openly accessible web platform.