梅とら
梅とら (English: Umetora) is a Japanese producer and composer. He started uploading songs to Nico Nico Douga around May 24, 2011. He's known for producing songs with the group DIVINE-DIVA which consists of Vocaloid voicebanks IA, Gumi, Luka, Miku and Rin.
His most famous song is "威風堂々" (Ifuudoudou).