The following definitions refer to the NoteAbilityPro data structure and the way that images are organized in a
NoteAbilityPro document.
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Music Structure |
The structure of staves, measure and beats on which music images are placed. The music structure can be altered, but its components
cannot be cut and pasted.
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Music Image | An object placed on the music structure at a beat location and associated with a staff. All music images
can be adjusted, moved, cut, copied or pasted.
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System | A group of staves that are intended to be played at the same time. Staves in the system
are often joined by braces and barlines.
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Staff ID | A number which identifies a particular staff across systems which may have different
numbers of staves. The Staff ID appears at the right edge of the staff.
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Rhythmic Spine | the horizontal position of measures, beats and subbeats in each system. All images are aligned to
the rhythmic spine and their horizontal position is adjusted when the spine is altered.
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Staff Association | Each music image is associated with a staff. When the vertical position of the staff is altered,
the position of the image is adjusted with the staff.
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Voice | Each music image belongs to a voice. There are normally three voices available on each staff - one with stems
in both directions, one with stems up, and one with stems down.
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Step | The vertical distance from a staff line to the staff space above or below.
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Note | A music image with a specific beat location and duration.
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Chord | A group of notes in the same voice at the same beat location are formed into a chord.
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Beam group | a series of notes, chords and/or rests that belong to the same voice and are joined together by a beam.
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Tuplet group | a series of notes, chords and/or rests that belong to the same voice and form a tuplet group.
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Control Point | The handles by which images are moved and adjusted. All images have 1, 2 or 3 control points.
The main control point is the main drawing position of the image (eg. the notehead of a note). The other Control Points are
used for adjusting the size or shape of the images.
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