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  2. Chord chart - Wikipedia

    en.wikipedia.org/wiki/Chord_chart

    The term "chord chart" can also describe a plain ASCII text, digital representation of a lyric sheet where chord symbols are placed above the syllables of the lyrics where the performer should change chords. [6] Continuing with the Amazing Grace example, a "chords over lyrics" version of the chord chart could be represented as follows:

  3. Chord (geometry) - Wikipedia

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

    Equal chords are subtended by equal angles from the center of the circle. A chord that passes through the center of a circle is called a diameter and is the longest chord of that specific circle. If the line extensions (secant lines) of chords AB and CD intersect at a point P, then their lengths satisfy AP·PB = CP·PD (power of a point theorem).

  4. Intersecting chords theorem - Wikipedia

    en.wikipedia.org/wiki/Intersecting_chords_theorem

    In Euclidean geometry, the intersecting chords theorem, or just the chord theorem, is a statement that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal. It is Proposition 35 of Book 3 of Euclid's Elements.

  5. Voice leading - Wikipedia

    en.wikipedia.org/wiki/Voice_leading

    In (b), the same measures are presented as four block chords (with two inverted): I – II 4 2 – V 6 5 – I. . In (c), the four measures are presented as five horizontal voices identified by the direction of the stems, which are added even though the notes are actually whole notes, making them look like half notes.

  6. Parallel and counter parallel - Wikipedia

    en.wikipedia.org/wiki/Parallel_and_counter_parallel

    The tonic, subdominant, and dominant chords, in root position, each followed by its parallel. The parallel is formed by raising the fifth a whole tone.. The minor tonic, subdominant, dominant, and their parallels, created by lowering the fifth (German)/root (US) a whole tone.

  7. Stem (music) - Wikipedia

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

    Different-pointing stems indicate the voice for polyphonic music written on the same staff. Within one voice, the stems usually point down for notes on the middle line or higher, and up for those below. If the stem points up from a notehead, the stem originates from the right-hand side of the note, but if it points down, it originates from the ...

  8. Chord notation - Wikipedia

    en.wikipedia.org/wiki/Chord_notation

    A rock or pop guitarist or keyboardist might literally play the chords as indicated (e.g., the C major chord would be played by playing the notes C, E and G at the same time). In jazz , particularly for music from the 1940s bebop era or later, players typically have latitude to add in the sixth, seventh, and/or ninth of the chord.

  9. Relative key - Wikipedia

    en.wikipedia.org/wiki/Relative_key

    A pair of major and minor scales sharing the same key signature are said to be in a relative relationship. [1] [2] The relative minor of a particular major key, or the relative major of a minor key, is the key which has the same key signature but a different tonic. (This is as opposed to parallel minor or major, which shares the same tonic.)