Abstract: Computer-implemented techniques for identifying a second music clip that is harmonically compatible with a first music clip. The techniques include computing beat-wise pitch interval space vectors from a chromatic saliency map of the first clip. These beat-wise vectors are then combined to form a clip-wise pitch interval space vector. A second clip undergoes a similar process, resulting in a second clip-wise pitch interval space vector. Harmonic compatibility is determined by measuring the distance or similarity between the first and second clip-wise pitch interval space vectors in the pitch interval space.

Abstract: Scalable similarity-based generation of compatible music mixes. Music clips are projected in a pitch interval space for computing musical compatibility between the clips as distances or similarities in the pitch interval space. The distance or similarity between clips reflects the degree to which clips are harmonically compatible. The distance or similarity in the pitch interval space between a candidate music clip and a partial mix can be used to determine if the candidate music clip is harmonically compatible with the partial mix. An indexable feature space may be both beats-per-minute (BPM)-agnostic and musical key-agnostic such that harmonic compatibility can be quickly determined among potentially millions of music clips. A graphical user interface-based user application allows users to easily discover combinations of clips from a library that result in a perceptually high-quality mix that is highly consonant and pleasant-sounding and reflects the principles of musical harmony.