Quarter-comma meantone each kind, a perfect fifth of meantone contains four diatonic and three chromatic semitones, and an octave seven diatonic and five chromatic semitones, it follows that: Thus, in Pythagorean tuning, where sequences of just fifths (frequency ratio 3:2) and octaves are used to produce the other intervals, a whole tone is and a major third is An interval of a seventeenth, consisting of sixteen diatonic and twelve chromatic semitones, such as the interval from D to F, can be equivalently obtained using either This large interval of a seventeenth contains staff positions. In Pythagorean tuning, the size of a seventeenth
Tropical Storm Octave (1983) to clean up dried mud near some rivers. Many destroyed buildings were later rebuilt. Considerable experience was also gained on how to protect flood banks. Ever since Octave, most of southern Arizona has been a drought. Repair costs from Octave totaled $60 million. It is estimated that it took four months for floodwaters to recede across southeastern Arizona and portions of New Mexico. Tropical Storm Octave (1983) Tropical Storm Octave was considered the worst tropical cyclone in the history of Arizona. The origins of Tropical Storm Octave were from a tropical disturbance that formed south of the Gulf of Tehuantepec