Phoenix Entertainment Partners v. Rumsey, 829 F.3d 817 (2016)

In Phoenix Entertainment Partners v. Rumsey, Plaintiff Slep-Tone Entertainment Corporation and its successor in interest, Phoenix Entertainment Partners LLC (collectively "Slep-Tone") is a business entity that primarily produces Karaoke accompaniment tracks for professional Karaoke systems under the trademark "Sound Choice." The tracks include a pre-recorded version of popular songs with lead vocals omitted to allow for singing performances. Another component of Sound Choice includes a display of lyrics to the song along with a variety of visual cues. The two components are synchronized to aid performers as they add their own voice to the musical background. In total, Slep-Tone has released over 16,500 karaoke versions of popular songs.