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  2. Clef - Wikipedia

    en.wikipedia.org/wiki/Clef

    Diagram of treble, alto and bass clefs with identical-sounding musical notes aligned vertically Middle C represented on (from left to right) treble, alto, tenor and bass clefs Three clefs aligned to middle C. A clef (from French: clef 'key') is a musical symbol used to indicate which notes are represented by the lines and spaces on a musical ...

  3. Optical music recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_music_recognition

    Optical music recognition (OMR) is a field of research that investigates how to computationally read musical notation in documents. [1] The goal of OMR is to teach the computer to read and interpret sheet music and produce a machine-readable version of the written music score.

  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. Keyboard matrix circuit - Wikipedia

    en.wikipedia.org/wiki/Keyboard_matrix_circuit

    A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix. For example, 16 wires arranged in 8 rows and 8 columns can connect 64 keys—sufficient for a full five octaves of range (61 notes).

  6. Enharmonic equivalence - Wikipedia

    en.wikipedia.org/wiki/Enharmonic_equivalence

    A musical passage notated as flats. The same passage notated as sharps, requiring fewer canceling natural signs. Sets of notes that involve pitch relationships — scales, key signatures, or intervals, [1] for example — can also be referred to as enharmonic (e.g., the keys of C ♯ major and D ♭ major contain identical pitches and are therefore enharmonic).

  7. Circle of fifths - Wikipedia

    en.wikipedia.org/wiki/Circle_of_fifths

    The key signatures associated with those pitches change accordingly: the key of G has one sharp, the key of D has 2 sharps, and so on. Proceeding counterclockwise from the top of the circle, the notes change by descending fifths and the key signatures change accordingly: the key of F has one flat, the key of B ♭ has 2 flats

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    mail.aol.com

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  9. Chord chart - Wikipedia

    en.wikipedia.org/wiki/Chord_chart

    For example, in the key of C major, the chord D minor seventh can be written as "2− 7", "2m 7", or "ii 7". "The musicians in Nashville use the Nashville Number System almost exclusively for conveying a song's structure and arrangement in the recording studio." [3] In the key of C, C=1, D=2, E=3, and so on for all seven notes in the key.