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.