Relations between music items

A non-transitory computer-readable medium having instructions stored thereon that, when executed by a computing device, cause the computing device to perform operations comprising:

• determining a first input representation for a first sub-mix of musical tracks stored in a database of sub-mixes;
• mapping the first input representation to a particular subspace derived from a vector space using a first model, wherein the particular subspace models a particular characteristic;
• determining a second input representation for a second sub-mix of musical tracks stored in the database of sub-mixes;
• mapping the second input representation to the particular subspace using a second model;
• determining a distance between the mapping of the first input representation in the particular subspace and the mapping of the second input representation in the particular subspace, wherein the distance represents a degree of relation between the first input representation and the second input representation with respect to the particular characteristic;
• and
• identifying, based on the degree of relation, the first sub-mix of musical tracks and the second sub-mix of musical tracks as candidate sub-mixes for a song assembly.

A system comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• determine a first input representation for a first sub-mix of musical tracks stored in a database of sub-mixes;
• map the first input representation to a particular subspace derived from a vector space using a first model, wherein the particular subspace models a particular characteristic;
• determine a second input representation for a second sub-mix of musical tracks stored in the database of sub-mixes;
• map the second input representation to the particular subspace using a second model;
• determine a distance between the mapping of the first input representation in the particular subspace and the mapping of the second input representation in the particular subspace, wherein the distance represents a degree of relation between the first input representation and the second input representation with respect to the particular characteristic;
• and
• identify, based on the degree of relation, the first sub-mix of musical tracks and the second sub-mix of musical tracks as candidate sub-mixes for a song assembly.