Mouse on the Keys, an instrumental band that has earned high praise both domestically and internationally, will make its Billboard Live debut in a special lineup. Centered on two pianos and drums rooted in math rock, they unfold a three-dimensional sound where polyrhythms and repetition interweave. For 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 created by synthesizers. As acoustic and electronic elements intersect, a new sonic image emerges that further expands the band's expression beyond what has come before. This performance delivers the band's most contemporary approach to date. We hope you will enjoy this music, which can be experienced only in this arrangement and at this venue, live in the hall.