Rainer Typke, Department of Computer Science, Utrecht University
This site provides an overview of content-based Music Information Retrieval systems. For each system, properties such as query formulation (e. g., audio or music notation), stored data (e. g., audio/audio fingerprints/MIDI), distance measures, matching, and indexing techniques are listed.
A full-text search for the list of systems and the Music IR FAQ is available.
You are more than welcome to include more systems or update information on already listed systems - this collection should stay up to date and grow whenever a new MIR system comes into existence.