Wireless handheld audio capture device and multi-vocalist method for audiovisual media application

A method comprising:

• establishing short-range wireless communications between a portable computing device and a display device-coupled computing platform, the display device-coupled computing platform in communication with a separate content server;
• using the portable computing device in a generally upside-down orientation as a wirelessly coupled audio capture interface for the display device-coupled computing platform while the display device-coupled computing platform provides pitch cues and an audibly rendered backing track in temporal correspondence with the pitch cues;
• capturing, via a microphone of the portable computing device, vocal audio from the user of the portable computing device;
• capturing, via a first camera of another device separate from the portable computing device, a first user video synchronized with the captured vocal audio;
• and
• visually rendering, on the other device, a sequence of visual layouts including the pitch cues and lyrics in temporal correspondence with the audibly rendered backing track, a first visual cell displaying the first user video synchronized with the captured vocal audio, and a second visual cell displaying a second user video synchronized with the captured vocal audio, wherein successive visual layouts of the sequence of visual layouts each include the first and second visual cells, and wherein a visual arrangement and sizing of the first and second visual cells, including respective ones of the first and second user videos displayed in the first and second visual cells, varies in correspondence with structural information, including a predefined sequence of vocal parts of a performance score, associated with the audibly rendered backing track.