Theme song is theme music accompanied by lyrics, most often associated with the show. It is a piece that is often written specifically for a radio program, television program, video game or movie, and usually played during the title sequence and/or end credits.
The tag applies to both theme song compilation albums or individual tracks which fit this description.
Best NOT to use this to tag an artist unless they are mostly know for the work on theme songs, or better still use the tag Theme music for those artists. .
