Ryota Hiramatsu is a composer and pianist. He graduated from Department of Composition at Tokyo College of Music. Hiramatsu started composing various musical pieces during his college days, including commissioned works on film music, for dinner shows and a percussion ensemble. Until now, he has collaborated and co-starred with Kazumasa Hashimoto, Seigen Tokuzawa, Ryo Sakagami, and Ayako Takato. In addition, he joined in the album of Smooth Ace as the pianist.

In 2011, Hiramatsu released the album "June 8" as Miyama x Hiramatsu. In March 2012, he organized the performance (S)HE and co-starred with the dancer, Yoko Niwa. In October, he played the piano in the TV advertisement for Canon's camera, "PowerShot S110". In early 2013, he performed live painting with the painter, Chihiro Koshi, as a part of the "Keidai art" at the temple in Obuse City, as well as a part of the "T-shirt art" on the seashore in Kesennuma City. In June, he organized the performance “Straight”, which was a combination of photographs and sound, collaborating with the photographer, Satoko Maeda, living in Otari-mura in Nagano. Then, Hiramatsu joined in the performances organized by Real & True, and performed as the opening acts for Keith Tippett of UK, Ulrike Haage of Germany, Splashgirl of Norway, and Eple Trio. In addition, he performed the improvisation session with Eric Schaefer.