pymusicxml.score_components.DurationalObject

class pymusicxml.score_components.DurationalObject[source]

Abstract base class for all objects that have duration within a measure.

Methods

Minimum divisor of a quarter note that would be needed to represent the duration of this note accurately.

Inherited Methods

`export_to_file`(file_path[, pretty_print])	Exports this musical object (wrapped as a score) to the given file path.
`render`()	Renders this component to a tuple of ElementTree.Element.
`to_xml`([pretty_print])	Renders this component to MusicXML, adding a version tag, but not wrapping it up as a full score.
`view_in_software`(command)	Uses the given terminal command to create a score out of this musical object, and open it in music notation software.
`wrap_as_score`()	Wraps this component in a `Score` so that it can be exported and viewed

Attributes

`divisions`	Subdivision used when representing this duration.
`length_in_divisions`	Length in terms of subdivisions.
`true_length`	True length in terms of the number of quarter notes, taking into tuplet time modification.
`written_length`	Written length in terms of the number of quarter notes.

abstract property true_length: float: True length in terms of the number of quarter notes, taking into tuplet time modification. Returns 0 in the case of grace notes.

abstract property written_length: float: Written length in terms of the number of quarter notes.

abstract property length_in_divisions: int: Length in terms of subdivisions. (See description of “divisions” attribute in Duration)

abstract property divisions: int: Subdivision used when representing this duration.

abstract min_denominator() → int[source]: Minimum divisor of a quarter note that would be needed to represent the duration of this note accurately. For instance, a triplet quarter note would have min_denominator 3, since it is 2/3 of a quarter.

export_to_file(file_path: str, pretty_print: bool = True) → None

Exports this musical object (wrapped as a score) to the given file path.

Parameters:

file_path – The path of the file we want to write to.
pretty_print – If True, breaks the MusicXML onto multiple lines, with indentation

abstract render() → Sequence[Element]: Renders this component to a tuple of ElementTree.Element. (The reason for making it a tuple is that musical objects like chords are represented by several notes side by side, with all but the first containing a </chord> tag.)

to_xml(pretty_print: bool = False) → str

Renders this component to MusicXML, adding a version tag, but not wrapping it up as a full score.

Parameters:: pretty_print – If True, breaks the MusicXML onto multiple lines, with indentation

view_in_software(command: str) → None

Uses the given terminal command to create a score out of this musical object, and open it in music notation software.

Parameters:: command – The terminal command corresponding to the software with which we want to open the score.

abstract wrap_as_score() → Score: Wraps this component in a Score so that it can be exported and viewed