An instrumental band that has earned high praise both domestically and internationally, mouse on the keys makes its Billboard Live debut in a special lineup. Centered on two pianos and drumming rooted in math rock, they unfold a three-dimensional sound in which polyrhythms and repetition interweave. In this edition of 【PARALLAX】, they are joined by a string section led by violinist Shuntaro Tsuneda, blending the organic resonance of strings with electronic textures from synthesizers. As acoustic and electronics intersect, a new sonic image emerges that further expands mouse on the keys' expression. This performance is delivered with the band's most contemporary approach to date. Please enjoy music that can only be experienced with this arrangement, at this venue.