Chord-Cube: Multiple Aspects Visualization Navigation System for Music by Detecting Changes of Emotional Content

摘要

This paper presents an interactive music search-and-navigation system visualizing musical similarities based on temporal chord progression. A unique feature of this system is a 3D musical space for displaying three types of similarities in musical samples. As a fundamental feature for calculating those features, we employed chord progression in a song because chord progression is one of the most important factor in determining the overall mood of a song. For rendering the content-based relevance with a timeline structure, our system models a typical pops and rock music as a combination of the following chord progression phases: Introductive-melody, Continued-melody, and Bridge. Our 3D visualization space adopts those three chord progression as X, Y, and Z axes. Our system provides an intuitive navigation mechanism over the visualized space by putting a query song in the origin point and showing semantic distance of the inputted song and other songs. Users can utilize this 3D space to find the desired song by putting the his/her favorites song in the origin point and recognizing the semantic distance of the origin point and other songs.