LilyPond Notation Reference: 4.1.6 Other \paper variables

### 4.1.6 Other `\paper` variables

#### `\paper` variables for line breaking

`max-systems-per-page`

  The maximum number of systems that will be placed on a page. This is currently supported only by the `ly:optimal-breaking` algorithm. Default: unset.

`min-systems-per-page`

  The minimum number of systems that will be placed on a page. This may cause pages to be overfilled if it is made too large. This is currently supported only by the `ly:optimal-breaking` algorithm. Default: unset.

`systems-per-page`

  The number of systems that should be placed on each page. This is currently supported only by the `ly:optimal-breaking` algorithm. Default: unset.

`system-count`

  The number of systems to be used for a score. Default: unset. This variable can also be set in a `\layout` block.

#### See also

Notation Reference: Line breaking.

#### `\paper` variables for page breaking

Default values not listed here are defined in ‘`ly/paper-defaults-init.ly`’

`blank-after-score-page-force`

  The penalty for having a blank page after the end of one score and before the next. By default, this is smaller than `blank-page-force`, so that we prefer blank pages after scores to blank pages within a score.

`blank-last-page-force`

  The penalty for ending the score on an odd-numbered page.

`blank-page-force`

  The penalty for having a blank page in the middle of a score. This is not used by `ly:optimal-breaking` since it will never consider blank pages in the middle of a score.

`page-breaking`

  The page-breaking algorithm to use. Choices are `ly:minimal-breaking`, `ly:page-turn-breaking`, and `ly:optimal-breaking`.

`page-breaking-system-system-spacing`

  Tricks the page breaker into thinking that `system-system-spacing` is set to something different than it really is. For example, if `page-breaking-system-system-spacing #'padding` is set to something substantially larger than `system-system-spacing #'padding`, then the page-breaker will put fewer systems on each page. Default: unset.

`page-count`

  The number of pages to be used for a score, unset by default.

#### See also

Notation Reference: Page breaking, Optimal page breaking, Optimal page turning, Minimal page breaking.

Installed Files: ‘`ly/paper-defaults-init.ly`’.

#### `\paper` variables for page numbering

Default values not listed here are defined in ‘`ly/paper-defaults-init.ly`’

`auto-first-page-number`

  The page breaking algorithm is affected by the first page number being odd or even. If set to true, the page breaking algorithm will decide whether to start with an odd or even number. This will result in the first page number remaining as is or being increased by one. Default: `#f`.

`first-page-number`

  The value of the page number on the first page.

`print-first-page-number`

  If set to true, a page number is printed on the first page.

`print-page-number`

  If set to false, page numbers are not printed.

#### See also

Installed Files: ‘`ly/paper-defaults-init.ly`’.

#### Known issues and warnings

Odd page numbers are always on the right. If you want the music to start on page 1 there must be a blank page on the back of the cover page so that page 1 is on the right hand side.

#### Miscellaneous `\paper` variables

`page-spacing-weight`

  The relative importance of page (vertical) spacing and line (horizontal) spacing. High values will make page spacing more important. Default: `#10`.

`print-all-headers`

  If set to true, this will print all headers for each `\score` in the output. Normally only the `piece` and `opus` header variables are printed. Default: `#f`.

`system-separator-markup`

  A markup object that is inserted between systems, often used for orchestral scores. Default: unset. The `\slashSeparator` markup, defined in ‘`ly/titling-init.ly`’, is provided as a sensible default, for example:

  >     #(set-default-paper-size "a8")

  >     \book {
  >       \paper {
  >         system-separator-markup = \slashSeparator
  >       }
  >       \header {
  >         tagline = ##f
  >       }
  >       \score {
  >         \relative c'' { c1 \break c1 \break c1 }
  >       }
  >     }

#### See also

Installed Files: ‘`ly/titling-init.ly`’.

Snippets: Spacing.

#### Known issues and warnings

The default page header puts the page number and the `instrument` field from the `\header` block on a line.

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