neoscore.western.octave_line
- class neoscore.western.octave_line.OctaveLine[source]
Bases:
Spanner,PositionedObject,HasMusicFontAn octave indication with a dashed line.
This octave line is purely cosmetic, and does not result in any automatic transpositions.
At the starting position the octave is written in text, followed by a dashed line ending in a small vertical hook pointing toward the staff. If the spanner goes across line breaks, the octave text is repeated in parentheses at the line beginning.
- __init__(start: PointDef, start_parent: PositionedObject, end_x: Unit, end_parent: Optional[PositionedObject] = None, indication: str = '8va', direction: DirectionY = DirectionY.DOWN, font: Optional[MusicFont] = None)[source]
- Parameters
start – The starting point.
start_parent – The parent for the starting position. If no font is given, this or one of its ancestors must implement
HasMusicFont.end_x – The spanner end x position. The y position will be automatically calculated to be horizontal.
end_parent – An object either in a Staff or a staff itself. The root staff of this must be the same as the root staff of
start_parent. If omitted, the stop point is relative to the start point.indication –
A valid octave indication. currently supported indications are:
’15ma’ (two octaves higher)
’8va’ (one octave higher)
’8vb’ (one octave lower)
’15mb’ (two octaves lower)
direction – The direction the line’s ending hook points. For lines above staves, this should be down, and vice versa for below.
font – If provided, this overrides any font found in the ancestor chain.