Masaya Oya, known professionally as Camellia, is a Japanese electronic musician and record producer. He is best known for his work in the rhythm game scene and has been a composer for games such as Sound Voltex, Hatsune Miku: Project Diva and Beatmania IIDX. Outside rhythm games, he has worked with the record label Pony Canyon and is a member of the label Exit Tunes. He also publishes his discography under his independent record label, KamelCamellia.
Oya began his career with a Vocaloid sound. After leaving the scene in 2013, he primarily composed fast-paced electronic dance music tracks, often reaching or exceeding 200 beats per minute. His music encompasses a variety of electronic styles, including j-core, dubstep, trance, drum and bass, hardcore, gabber, trap, speedcore, and doujin music. Rather than adhering to a single genre, he is noted for actively experimenting with diverse sounds across his works.
He often collaborates with and has released several albums alongside the singer Nanahira. He has also produced remixes of the Undertale original soundtrack and collaborations with the game designer and composer Toby Fox.
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