The music for each game in the "Myst" series has fallen to various composers. Originally, the Millers believed that any music or sound besides ambient noise would distract the player from the game and ruin the sense of reality; "Myst", therefore, was to have no music at all. A sound test eventually persuaded the developers that music heightened the sense of immersion rather than lessening it, and as such Robyn Miller composed 40 minutes of synthesized music for the game. He would also produce the music for "Riven", which featured leitmotifs for each of the main characters. Virgin Records bought the rights to the music and produced the soundtracks, which were released in 1998.