Eri Kawai, the singer-songwriter for Aria, Utawarerumono, and several other anime and live-action series, passed away on Monday at 11:40 a.m. in Japan. Kawai graduated from Tokyo University of the Arts and worked in all aspects of music from singing and composing her own songs to arranging and performing for other people's works. Her music can be heard on the soundtracks for the Air movie, Aria the Animation and its sequels, Crayon Shin-chan, Sketchbook ~full color'S~, Bamboo Blade, Romeo X Juliet, Strange Dawn, Tales of Symphonia, and Utawarerumono. Kawai had been in medical treatment since earlier this year and had to cancel a July 10 solo performance in Tokyo as a result.