Module spanner 

Marks joining several notes: slurs. Spanners: marks that join several notes, music21’s spanner module.

music21 keeps a spanner as an object holding the very notes it joins. A stream here owns what it holds, so a spanner names its notes by where they stand instead: by their positions in Stream::leaves of the stream the spanner belongs to, first to last.

Structs

Glissando

What a glissando says beside the notes it joins: how it is played and the words written along it, music21’s slideType and label.

LineEnds

How a line’s ends are drawn: music21’s startTick, endTick, startHeight and endHeight.

OctaveShift

How far and which way an octave line moves the notes under it: music21’s Ottava.type.

Pedal

A pedal mark’s pedal and how it is drawn: music21’s pedalType, pedalForm and abbreviated, the first two of which a score need not say.

PedalObject

A moment inside a held pedal – a bounce, or a gap in its line – which stands in the stream at its own offset and is joined by the pedal mark it belongs to: music21’s PedalObject.

Spanner

A mark joining several notes: music21’s Spanner.

Enums

LineEnd

The tick at one end of a line.

PedalForm

How a pedal mark is drawn: music21’s PedalForm.

PedalObjectKind

Which of music21’s pedal objects a PedalObject is.

PedalType

Which pedal a pedal mark holds down: music21’s PedalType.

SlideType

How a glissando is played: music21’s Glissando.slideType.

SpannerKind

Which of music21’s spanner classes a spanner is.