Another example is with manual beaming, where indicate the extent of the beam. One example is with slurs, where ( and ) indicate the beginning and ending of a slur, respectively. Some common commands are represented symbolically to ease typing.The function of the command in question determines where the command is placed for example, if the command is used to indicate a fixed dynamic on a specific note, it is placed after the note. Commands usually begin with a backslash (such as \time, or \slurUp).For example, in absolute mode, a'4 is an A, one octave up from the base A (A3 in scientific pitch notation), of quarter note length. The semantics of the pitch-duration format change depending on the active input mode this is explained in depth in the LilyPond manual. Notes are represented in pitch-duration format: pitch is specified with Helmholtz pitch notation, and duration is specified with a numeral based system.Single-line comments begin with a percent sign %.Some general syntactic features are listed below. The ability to embed Scheme code within a LilyPond source file permits arbitrary extensions to the input language and assists with algorithmic composition. The native input language for LilyPond is comprehensive, and consists of many commands needed for expressing any sort of articulation, dynamic, meter, etc. For example, with this setting, the space between consecutive quarter notes is four times greater than between consecutive sixteenth notes. Proportional spacing: notes can be positioned in such a way that exactly reflects their duration.Special ledger line handling: ledger lines are shortened when accidentals are nearby, thus enhancing readability.
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