siinamota (椎名もた), formerly Powapowa-P (ぽわぽわP), or Furukawa Noro (古河のろ), real name Mizoguchi Ryou (溝口遼), was a composer at the Japanese music label U/M/A/A (GINGA). He was born March 09, 1995 in Ishikawa Prefecture, Japan. From a young age, he had been fond of musical instruments, and started creating DTM (desktop music) when he was at the second year of middle school (14 years old). Some time later, he began gaining recognition from composing VOCALOID music, going under various aliases such as Pico:, highcolor_sunz (ハイカラさん), Nioudachi (仁王立ち). In the midst of his rising popularity, siinamota underwent a temporary suspension of activity from January 2011 to May 30th of the same year. In 2012, he joined GINGA, and proceeded to release the album Yume no Mani Mani. Since then, he had been active in various fields, making appearances on TV, live performances, and constantly producing remixes and music. His music usually utilizes the sound percussion, creating a comfortable and soothing melody. His P-name, Powapowa-P, also originated from such characteristic of his songs. He mainly used Hatsune Miku and Kagamine Rin in his works, and his most notable work is Q. Many of his works have entered the Hall of Fame on Niconico. He passed away on July 23, 2015 at the age of 20, from undisclosed reasons, though it's commonly believed to be suicide.