> For the complete documentation index, see [llms.txt](https://handbook.musescore.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://handbook.musescore.org/3/notation/octave-lines.md).
# Octave lines
**Octave (Ottava) lines** are used to indicate that a section of music is to be played one or more octaves above or below written pitch: The line may be dotted or solid. Ottavas are available in the [Lines](/3/notation/lines.md) [palette](/3/basics/palettes.md) of the Basic and Advanced [workspaces](/3/basics/workspaces.md).
*8*─────┐or *8va*─────┐: Play one octave above written pitch\
\&#xNAN;*8*─────┘or *8va*─────┘: Play one octave below written pitch
8va alta/bassa lines are particularly common in piano scores, though they are sometimes used in other instrumental music.[1](#fn:1) 15ma alta (2 octaves above) and 15ma bassa (2 octaves below) are also occasionally used.
MuseScore automatically adjusts playback of the score under the ottava to the correct pitch.
## Apply an octave line
See [Applying lines to the score](/3/notation/lines.md#applying-lines-to-the-score).
And to adjust the vertical position, see [Lines: Adjust vertical position](/3/notation/lines.md#adjust-vertical-position).
## Change length
See [Lines: Change length](/3/notation/lines.md#change-length-and-anchors-together).
## Custom lines
Ottavas can be customized just like any other line. See [Custom lines and line properties](/3/notation/lines.md#inspector-properties-of-lines).
Properties unique to Octave lines can be adjusted in the **Ottava** section of the Inspector:
* **Type**: Change the Ottava line text.
* **Placement**: Set to "Above" or "Below" the staff.
* **Numbers only**: Untick for both number and text (e.g. "8va"). Tick for a number only (e.g. "8").
## External links
* [Octave](https://en.wikipedia.org/wiki/Octave) at Wikipedia
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