LilyPond program-reference: 3.1.48 KeyCancellation

### 3.1.48 KeyCancellation

KeyCancellation objects are created by: Key_engraver.

Standard settings:

> `stencil` (unknown):

>   `ly:key-signature-interface::print`

>   The symbol to print.

> `glyph-name-alist` (list):

>   `'((0 . accidentals.natural))`

>   An alist of key-string pairs.

> `space-alist` (list):

>   `'((time-signature extra-space . 1.25) (staff-bar extra-space . 0.6) (key-signature extra-space . 0.5) (right-edge extra-space . 0.5) (first-note fixed-space . 2.5))`

>   A table that specifies distances between prefatory items, like clef and time-signature. The format is an alist of spacing tuples: `(break-align-symbol type . distance)`, where type can be the symbols `minimum-space` or `extra-space`.

> `Y-offset` (number):

>   `ly:staff-symbol-referencer::callback`

>   The vertical amount that this object is moved relative to its Y-parent.

> `break-align-symbol` (symbol):

>   `'key-cancellation`

>   This key is used for aligning and spacing breakable items.

> `break-visibility` (vector):

>   `#(#t #t #f)`

>   A vector of 3 booleans, `#(end-of-line unbroken begin-of-line)`. `#t` means visible, `#f` means killed.

> `non-musical` (boolean):

>   `#t`

>   True if the grob belongs to a `NonMusicalPaperColumn`.

This object supports the following interface(s): staff-symbol-referencer-interface, key-signature-interface, key-cancellation-interface, item-interface, font-interface, break-aligned-interface and grob-interface.

#### Internals Reference