【VOCALOID・UTAU】円周率 1000桁【15人合唱】 HD 720p - [downvis.com]

Translation: [VOCALOID and UTAU] Circle Circumference Ratio/PI [in] 1000 Digits [15 Synthesizers] HD 720p - [downvis.com] Original video: https://www.youtube.com/watch?v=9bLnSOOu_58 Basis: Pi-P feat. Kagamine Len and Rin - The Twins Challenged to 1000 Digits of the Circle's Circumference Ratio ("Pi")

http://www.nicovideo.jp/watch/sm32636759