There are three levels of text formatting in MuseScore:
When you create a text object in the score it automatically assumes a style appropriate to its class. For example, a tempo mark will have the “Tempo” style; a fingering number, the "Fingering" style and so on.
A style consists of a group of text properties (font-size, align, offset etc.) with specific values. You can view the full range of text styles in Format→Style→Text Styles.
To check the style of a selected text object, click the More button in the Text section of the Properties panel. The style name will be visible under "Text style".
Text style is the top level of formatting.
The text properties of a particular, selected text object can be viewed and edited in the Text section of the Properties panel.
This the second-level of formatting—the text object level.
Individual characters within a text object may themselves be formatted independently.
This is the third level of formatting—the character level.
Character formatting overrides Text object formatting, which, in turn, overrides Style.
After clicking on a text object you can edit its text properties in the Text section of the Properties panel.
Click More to see:
In order to edit the characters within a text object you need to enter text edit mode using one of the following methods:
Then you can apply formatting to highlighted characters using the Text section of the Properties panel, and/or keyboard shortcuts (see Editing text).
Note that certain properties in the Properties panel are not applicable to characters—such as "Alignment", "Frame", "Text style" and so on. If you attempt to apply them, they are added to the text object instead.
If you want to change the default style properties of a particular class of objects, you can do so in the Style menu: From the menu bar, select Format→Style→Text Styles.
However, it is often better to do this from the Properties panel itself:
If you wish to change the text style associated with a text object:
For text objects applied to the staff, the default position may be above or below the staff. This may be changed at the style or text object level with the Position property (Above/Below).