music21.percussion

PercussionChord

class music21.percussion.PercussionChord(notes: None | str | Sequence[str] | Sequence[Pitch] | Sequence[ChordBase] | Sequence[NotRest] | Sequence[int] = None, **keywords)

ChordBase and :class:`~music21.note.NotRest subclass that is NOT a Chord because one or more notes is an Unpitched object.

>>> pChord = percussion.PercussionChord([note.Unpitched(displayName='D4'), note.Note('E5')])
>>> pChord.isChord
False

Has notes, just like any ChordBase:

>>> pChord.notes
(<music21.note.Unpitched object at 0x...>, <music21.note.Note E>)

Assign them to another PercussionChord:

>>> pChord2 = percussion.PercussionChord()
>>> pChord2.notes = pChord.notes
>>> pChord2.notes
(<music21.note.Unpitched object at 0x...>, <music21.note.Note E>)

Don’t attempt setting anything but Note or Unpitched objects as notes:

>>> pChord2.notes = [note.Rest()]
Traceback (most recent call last):
TypeError: every element of notes must be a note.Note or note.Unpitched object

Equality

Two PercussionChord objects are equal if their notes are equal and in the same order (this is different from Chord, but necessary because we cannot compare based just on pitch equality)

>>> pChord == pChord2
True
>>> pChord3 = percussion.PercussionChord([note.Unpitched('D4')])
>>> pChord == pChord3
False

PercussionChord bases

• ChordBase

• NotRest

• GeneralNote

• Music21Object

• ProtoM21Object

PercussionChord read-only properties

Read-only properties inherited from GeneralNote:

fullName

Read-only properties inherited from Music21Object:

beat beatDuration beatStr

beatStrength hasEditorialInformation

hasStyleInformation measureNumber

Read-only properties inherited from ProtoM21Object:

classSet

classes

PercussionChord read/write properties

PercussionChord.notes

PercussionChord.pitches

Get or set a list or tuple of all Pitch objects in this PercussionChord.

Unpitched members (that at most have only display pitches) are ignored.

>>> pChord = percussion.PercussionChord([note.Unpitched(displayName='D4'), note.Note('E5')])
>>> pChord.pitches
(<music21.pitch.Pitch E5>,)

>>> pChord.pitches = [60]
>>> pChord.pitches
(<music21.pitch.Pitch C4>,)

Notice that setting pitches has now just cleared any existing notes, pitched or unpitched: >>> pChord.notes (<music21.note.Note C>,)

Read/write properties inherited from ChordBase:

tie

volume

Read/write properties inherited from NotRest:

notehead noteheadFill

noteheadParenthesis stemDirection

storedInstrument

Read/write properties inherited from GeneralNote:

lyric

Read/write properties inherited from Music21Object:

activeSite derivation duration editorial

id offset priority

quarterLength seconds style

PercussionChord methods

PercussionChord.__eq__(other)

Returns True if all the notes are equal and in the same order.

Methods inherited from ChordBase:

add() hasComponentVolumes()

remove()

setVolumes()

Methods inherited from NotRest:

getInstrument()

hasVolumeInformation()

Methods inherited from GeneralNote:

addLyric() augmentOrDiminish()

getGrace()

insertLyric()

Methods inherited from Music21Object:

clearCache() containerHierarchy() contextSites() getAllContextsByClass() getContextByClass() getOffsetBySite() getOffsetInHierarchy()

getSpannerSites() informSites() mergeAttributes() next() previous() purgeLocations() purgeOrphans()

setOffsetBySite() show() sortTuple() splitAtDurations() splitAtQuarterLength() splitByQuarterLengths() write()

Methods inherited from ProtoM21Object:

isClassOrSubclass()

PercussionChord instance variables

Instance variables inherited from ChordBase:

beams

isNote

isRest

Instance variables inherited from NotRest:

beams

Instance variables inherited from GeneralNote:

articulations expressions

isChord

lyrics

Instance variables inherited from Music21Object:

classSortOrder groups

isStream

sites