About the Work “sonus-oleum ; Sonosorium” is a live installation in which visitors can experience works in different forms on each of the three floors of the ship-shaped facility (T-LOTUS M): B1F, 1F, and the rooftop. With the premise that “music becomes the energy that moves the ship,” the work explores the form of music born inside the ship through the following four formats. Live Performance 1 — The Birth of Music — This work begins with a live performance on B1F. The music is an original piece composed by Fumitake Ezaki specifically for this live installation. The performance is by Fumitake Ezaki (piano), Shuntaro Tsuneta (violin), Sonoko Muraoka (cello), and an automatic piano. The venue was designed with eight 3 m × 4 m screens installed on both sides of the performers, enveloping visitors in music and imagery. Real-time motion graphics synchronized with the instruments were projected onto the screens. The elements composing the real-time motion graphics are the piano’s output of keyboard input (88 keys), the strength and duration of pedal presses, and the hand movements of the violin and cello players captured using ring devices. The real-time motion graphics linked to the performers’ movements depict the energy of music being generated and floating upward to the upper levels. Interactive Installation — Variation through Images — The energy of the music born in the B1F live performance appears as bubbles within the interactive work on 1F. Seven 2.4 m × 2.4 m translucent screens were installed throughout the 1F space in alignment with the windows, and interactive visuals were projected onto them. When visitors touch the bubbles displayed on each screen, the bubbles split, and each note of the original piece transforms into a different timbre. Variations born from chance continue to be generated endlessly. Projection Mapping — Music Creates Wind — The variations generated on 1F rise further to the rooftop, where they create the wind that moves the ship. Using four large 30,000-lumen projectors, the wind stirred up by the power of music and striking the sails was projected above the visitors’ heads. Live Performance 2 — A Session with Returned Sound — In the second live performance held on B1F, the automatic piano played in real time the variations generated by visitors touching the bubbles on 1F, while Ezaki (piano), Tsuneta (violin), and Muraoka (cello) improvised along with it. The interplay of visitor-generated variations, improvised live performance, and real-time motion graphics evoked a new form of music. Through these four processes, this live installation created a landscape in which sound was “unlearned” and transformed into new sounds, continuing in circulation. The title “sonus-oleum ; Sonosorium” is a coined word combining sonus, meaning sound, and petroleum, meaning oil.