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  2. Rod (unit) - Wikipedia

    en.wikipedia.org/wiki/Rod_(unit)

    The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.

  3. Music theory - Wikipedia

    en.wikipedia.org/wiki/Music_theory

    The Oxford Companion to Music describes three interrelated uses of the term "music theory": The first is the "rudiments", that are needed to understand music notation (key signatures, time signatures, and rhythmic notation); the second is learning scholars' views on music from antiquity to the present; the third is a sub-topic of musicology ...

  4. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...

  5. Set theory (music) - Wikipedia

    en.wikipedia.org/wiki/Set_theory_(music)

    The fundamental concept of musical set theory is the (musical) set, which is an unordered collection of pitch classes. [4] More exactly, a pitch-class set is a numerical representation consisting of distinct integers (i.e., without duplicates). [5]

  6. Trichord - Wikipedia

    en.wikipedia.org/wiki/Trichord

    In music theory, a trichord (/ t r aɪ k ɔːr d /) is a group of three different pitch classes found within a larger group. [2] A trichord is a contiguous three-note set from a musical scale [3] or a twelve-tone row. In musical set theory there are twelve trichords given inversional equivalency, and, without inversional equivalency, nineteen ...

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Roman numeral analysis - Wikipedia

    en.wikipedia.org/wiki/Roman_numeral_analysis

    In music theory, Roman numeral analysis is a type of harmonic analysis in which chords are represented by Roman numerals, which encode the chord's degree and harmonic function within a given musical key. Specific notation conventions vary: some theorists use uppercase numerals (e.g.

  9. Period (music) - Wikipedia

    en.wikipedia.org/wiki/Period_(music)

    In music theory, the term period refers to forms of repetition and contrast between adjacent small-scale formal structures such as phrases. In twentieth-century music scholarship, the term is usually used similarly to the definition in the Oxford Companion to Music : "a period consists of two phrases, antecedent and consequent, each of which ...

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