Swallowtail (film) Swallowtail (film) Swallowtail, also known as Swallowtail Butterfly (スワロウテイル "Suwarōteiru"), is a 1996 Japanese crime film directed by Shunji Iwai, starring Hiroshi Mikami, pop-singer Chara, and Ayumi Ito. The film was shot on hand-held cameras using jump cuts and other visual techniques. It covers a wide array of themes and genres, from social realism to coming-of-age to crime. A theme song for the film under "Yen Town Band", titled "Swallowtail Butterfly (Ai no Uta)", gained first place on the Oricon Weekly Singles Chart of October 7, 1996. The film is set in Tokyo at an unspecified point in the near
Pythagorean comma Pythagorean comma In musical tuning, the Pythagorean comma (or ditonic comma), named after the ancient mathematician and philosopher Pythagoras, is the small interval (or comma) existing in Pythagorean tuning between two enharmonically equivalent notes such as C and B (), or D and C. It is equal to the frequency ratio (1.5)/128 = about 1.01364, or about 23.46 cents, roughly a quarter of a semitone (in between 75:74 and 74:73). The comma which musical temperaments often refer to tempering is the Pythagorean comma. The Pythagorean comma can be also defined as the difference between a Pythagorean apotome and a Pythagorean