Coordinating and mixing vocals captured from geographically distributed performers

A system comprising:

• one or more communications interfaces for receiving audio encodings from, and sending audio encodings to, remote devices;
• a rendering pipeline executable to mix (i) performer vocals captured at respective ones of the remote devices with (ii) a backing track;
• and
• performance accretion code executable on the system to (i) supply a second one of the remote devices with a first audio encoding that includes at least first performer vocals captured at a first one of the remote devices, (ii) cause the rendering pipeline to mix at least two versions of a coordinated vocal performance, and (iii) supply the remote devices with corresponding versions of the coordinated vocal performance,
• wherein a first of the versions of the coordinated vocal performance features the first performer vocals more prominently than second performer vocals, and
• wherein a second of the versions of the coordinated vocal performance features the second performer vocals more prominently than the first second performer vocals.

A computer program product encoding, in one or more non-transitory computer readable media, instructions executable on one or more processors to collectively:

• receive via a communication network, a first audio encoding of first performer vocals captured at a first remote device;
• mix the first performer vocals with a backing track and supply a second remote device with a resulting first mixed performance;
• receive via the communication network, a second audio encoding of second performer vocals captured at the second remote device against a local audio rendering of the first mixed performance;
• and
• supply the first and second remote devices with corresponding combined performance mixes of the captured first and second performer vocals with the backing track, wherein the combined performance mix supplied to the first remote device features one of the first and second performers more prominently than the other, and wherein the combined performance mix supplied to the second remote device features more prominently the other of the first and second performers.