With Windows Media Player, you can show lyrics of songs to Windows Media Player window like you would sing karaoke in the following way :

You run Windows Media Player, right-click on the toolbar, select Play > Lyrics, Captions, and Subtitles > On if Available .

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Next go to library, create a new Playlists by clicking Create Playlists . Add songs to the created playlists, select and right-click the song, select Advanced Tag Editor > Lyrics > Add .

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The Language section does not select anything, but in the Text section you type the lyrics into it.

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Next choose to Synchronized Lyrics , then click OK .

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This is the result you get (done on Windows Media Player 11)

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Bui Anh Tuan