The notes played by its user triggers the projector to show holographic images which relate to the mood of the notes. Due to its complicated nature, it requires a great amount of skill to play. According to Turanga Leela, only a few people possess the skill to play the instrument - and they are not very good at it. In Parasites Lost a clan of parasitic worms improve Fry and enable him to play the Holophonor to perfection, which he uses to win Leela's heart. Once he rids his body of the worms his skill becomes nothing more than that of a beginner and Leela dumps him.