LilyPond Internals Reference: 3.1.151 TrillPitchParentheses

### 3.1.151 `TrillPitchParentheses`

The parentheses of a pitched trill. See also `TrillPitchGroup`.

`TrillPitchParentheses` objects are created by: `Pitched_trill_engraver`.

Standard settings:

`font-size` (number):

  `-4`

  The font size, compared to the ‘normal’ size. `0` is style-sheet’s normal size, `-1` is smaller, `+1` is bigger. Each step of 1 is approximately 12% larger; 6 steps are exactly a factor 2 larger. If the context property `fontSize` is set, its value is added to this before the glyph is printed. Fractional values are allowed.

`padding` (dimension, in staff space):

  `0.3`

  Add this much extra space between objects that are next to each other.

`stencil` (stencil):

  `parentheses-interface::print`

  The symbol to print.

`stencils` (list):

  `parentheses-interface::calc-parenthesis-stencils`

  Multiple stencils, used as intermediate value.

`Y-extent` (pair of numbers):

  `#<unpure-pure-container #<procedure ly:grob::stencil-height (_)> >`

  Extent (size) in the Y direction, measured in staff-space units, relative to object’s reference point.

This object supports the following interface(s): `font-interface`, `grob-interface`, `item-interface`, `parentheses-interface` and `pitched-trill-interface`.

This object is of class Item (characterized by `item-interface`).

#### LilyPond – Internals Reference v2.24.4 (stable-branch).