There is only one file type that uses the .LRC extension:
An LRC file is a text file used by audio playback and karaoke applications, such as StepMania and Recisio KaraFun. It stores song lyrics and timing information for displaying the lyrics while a song is playing. LRC files include "Line Item Tags" that provide cue points to indicate when the lyrics should be displayed while the song is playing.
LRC files support time intervals in centiseconds. They also support colors and lyrics that span multiple lines. See the following for an example three-line LRC file:
[0:21.14]Example song lyrics 1
[0:21.14]Example song lyrics 2
LRC files usually have the same filename as the song file they are associated with. For example, the lyrics file for the song dance.mp3 would be dance.lrc.
NOTE: There are multiple LRC formats that have been developed and enhanced over several years of community involvement. While some players only recognize simple formats, others support more advanced features.
Updated: July 20, 2017