Despite many practical limitations imposed by
mobile device platforms and application execution environments, vocal musical performances may be captured and continuously
pitch-corrected for mixing and rendering with backing tracks in ways that create compelling user experiences. In some cases, the vocal performances of individual users are captured on mobile devices in the context of a karaoke-style presentation of
lyrics in correspondence with audible renderings of a backing track. Such performances can be
pitch-corrected in real-time at a portable computing device (such as a
mobile phone, personal digital assistant,
laptop computer, notebook computer, pad-type computer or netbook) in accord with
pitch correction settings. In some cases,
pitch correction settings include a
score-coded melody and / or harmonies supplied with, or for association with, the
lyrics and backing tracks. Harmonies notes or chords may be coded as explicit targets or relative to the
score coded melody or even actual pitches sounded by a vocalist, if desired.