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  2. Dal segno - Wikipedia

    en.wikipedia.org/wiki/Dal_segno

    Segno A contrived example showing DS al FINE. Play ⓘ Use of Dal Segno eliminates the need to write out extra measures, often many more than in this example. The notes are to be played in this order: G A B B C' A B B C' C.

  3. History of trigonometry - Wikipedia

    en.wikipedia.org/wiki/History_of_trigonometry

    The chord of an angle subtends the arc of the angle. Ancient Greek and Hellenistic mathematicians made use of the chord. Given a circle and an arc on the circle, the chord is the line that subtends the arc. A chord's perpendicular bisector passes through the center of the circle and bisects the angle.

  4. Minor chord - Wikipedia

    en.wikipedia.org/wiki/Minor_chord

    A unique particularity of the minor chord is that this is the only chord of three notes in which the three notes have one harmonic – hearable and with a not too high row – in common (more or less exactly, depending on the tuning system used). This harmonic, common to the three notes, is situated 2 octaves above the high note of the chord.

  5. Roman numeral analysis - Wikipedia

    en.wikipedia.org/wiki/Roman_numeral_analysis

    These chords are all borrowed from the key of E minor. Similarly, in minor keys, chords from the parallel major may also be "borrowed". For example, in E minor, the diatonic chord built on the fourth scale degree is IVm, or A minor. However, in practice, many songs in E minor will use IV (A major), which is borrowed from the key of E major.

  6. Chord notation - Wikipedia

    en.wikipedia.org/wiki/Chord_notation

    In this case, the chord is viewed as a C major seventh chord (CM 7) in which the third note is an augmented fifth from root (G ♯), rather than a perfect fifth from root (G). All chord names and symbols including altered fifths, i.e., augmented (♯ 5, +5, aug5) or diminished (♭ 5, o 5, dim5) fifths can be interpreted in a similar way.

  7. Chord (music) - Wikipedia

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

    A guitarist performing a C chord with G bass. In Western music theory, a chord is a group [a] of notes played together for their harmonic consonance or dissonance.The most basic type of chord is a triad, so called because it consists of three distinct notes: the root note along with intervals of a third and a fifth above the root note. [1]

  8. Wang tells Rubio leaders have set tone and direction of US ...

    www.aol.com/news/us-top-diplomat-rubio-chinas...

    WASHINGTON (Reuters) -China's Foreign Minister Wang Yi spoke with new U.S. Secretary of State Marco Rubio on Friday and told the known China hawk that the direction and tone of U.S.-China ties had ...

  9. Chinese musical notation - Wikipedia

    en.wikipedia.org/wiki/Chinese_musical_notation

    The earliest known examples of text referring to music in China are inscriptions on musical instruments found in the Tomb of Marquis Yi of Zeng (d. 433 B.C.). Sets of 41 chime stones and 65 bells bore lengthy inscriptions concerning pitches, scales, and transposition.