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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 ...
Dominant seventh chord on C: C 7 Play ⓘ.. A tetrad is a set of four notes in music theory.When these four notes form a tertian chord they are more specifically called a seventh chord, after the diatonic interval from the root of the chord to its fourth note (in root position close voicing).
List of musical chords Name Chord on C Sound # of p.c.-Forte # p.c. #s Quality Augmented chord: Play ...
A tetrapod is a four-limbed animal of the superclass Tetrapoda. Tetrapod may also refer to: Tetrapod (structure), a type of structure used to prevent erosion in coastal engineering; Tetrapod (table) or analogion, a lectern or slanted stand used to display the Gospel Book in churches
The larynx (/ ˈ l æ r ɪ ŋ k s /), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration.
In effect, "tetrapod" is a name reserved solely for animals which lie among living tetrapods, so-called crown tetrapods. This is a node-based clade , a group with a common ancestry descended from a single "node" (the node being the nearest common ancestor of living species).
Evolution of tetrapods (3 C, 14 P) R. Reptiliomorphs (5 C, 11 P) T. Tetrapod taxa (3 C) Pages in category "Tetrapods" The following 4 pages are in this category, out ...
In tetrapods, they are only present during embryonic stages of the development. A post-anal tail. A muscular tail that extends backwards beyond the location of the anus. In some chordates such as hominids, this is only present in the embryonic stage. An endostyle. This is a groove in the ventral wall of the pharynx.