The Already Now is a multimedia musical composition combining piano, electronics, live video and dance. Base on the concept of Déjà vu, it explores how consciousness and unconsciousness affect the interpretation of people. The piece is divided into four sections: “Preliminary exploration of consciousness”, “not scientifically proven Déjà vu”, “scientifically proven Déjà vu”, “re-exploration of consciousness”. The first section explores the relationship between consciousness, unconsciousness, and its quality. The second section describes the Déjà vu in different time and space occurring in the present. The third section describes the Déjà vu caused by de-synchronization of brain message using collage technique. Finally, in the fourth paragraph, it comes back to explore the consciousness and unconsciousness, but in the author's impressions and stand of point. This piece uses piano and electronics as an external information sources, creating a sense of anticipation in rhythm, pitch and form. The two dancers dance according to sound “messages” of audio performance to exhibit the communication and conflict between conscious and unconscious. The video stands for the reaction of Déjà vu in human mind. By using somatosensory detection and sound interaction program, the piece connects information data, human consciousness and physical perception into multimedia interactive musical composition. This paper describes the composition motive and design of Déjà vu according to the four paragraphs.