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In music theory, a tetrachord (Greek: τετράχορδoν; Latin: tetrachordum) is a series of four notes separated by three intervals.In traditional music theory, a tetrachord always spanned the interval of a perfect fourth, a 4:3 frequency proportion (approx. 498 cents)—but in modern use it means any four-note segment of a scale or tone row, not necessarily related to a particular tuning ...
All-interval tetrachords (Play ⓘ). An all-interval tetrachord is a tetrachord , a collection of four pitch classes , containing all six interval classes . [ 1 ] There are only two possible all-interval tetrachords (to within inversion), when expressed in prime form.
In contrast, the ancient Greek chromatic scale had seven pitches (i.e. heptatonic) to the octave (assuming alternating conjunct and disjunct tetrachords), and had incomposite minor thirds as well as semitones and whole tones. The (Dorian) scale generated from the chromatic genus is composed of two chromatic tetrachords:
Descending tetrachord in a minor: -♭-♭ - (a-g-f-e) Play ⓘ. The Phrygian progression creates a descending tetrachord bassline: -♭-♭ - . Phrygian half cadence: i-v6-iv6-V in c minor (bassline: c -b ♭-a ♭-g) Play ⓘ.
We have a new favorite to win the College Football Playoff after the first round.. No. 5 seed Texas is +300 to win it all at BetMGM after its 38-24 win over No. 12 Clemson on Saturday. The ...
A Miami Herald investigation into the boat crash that killed a 17-year-old Lourdes student reveals a deeply flawed probe as FWC investigators and prosecutors built a case against George Pino.
Tetrachords (dörtlü) are on the left, pentachords (beşli) on the right. The symbols (simge) from the table above are here used to signal the intervals used in these patterns. Similar to the construction of maqamat noted above, a makam in Turkish music is built of a tetrachord built atop a pentachord, or vice versa.
The NFL is holding a regular-season game in Berlin for the very first time.