Augmented seventh Adding a diesis to this makes up an octave. Hence, this interval's complement, the diminished second, is often referred to as a diesis. Augmented seventh In classical music from Western culture, an augmented seventh is an interval produced by widening a major seventh by a chromatic semitone. For instance, the interval from C to B is a major seventh, eleven semitones wide, and both the intervals from C to B, and from C to B are augmented sevenths, spanning twelve semitones. Being augmented, it is classified as a dissonant interval. However, it is enharmonically equivalent to the perfect octave. Since
Octave of Easter Claude Frollo, Quasimodo's adoptive father] baptized his adopted child and called him Quasimodo; whether it was that he chose thereby to commemorate the day when he had found him, or that he meant to mark by that name how incomplete and imperfectly molded the poor little creature was. Indeed, Quasimodo, one-eyed, hunchbacked, and bow-legged, could hardly be considered as anything more than an "almost". Octave of Easter The term Octave of Easter refers to the eight-day period (octave) in Eastertide that starts on Easter Sunday and concludes with the Sunday following Easter. The Octave Day of Easter refers only to