--- /dev/null
+\version "2.14.0"
+
+\header {
+ texidoc = "Default values for margins, indents, and offsets are
+accessible in paper-defaults-init.ly and apply to the default
+paper size returned by (ly:get-option 'paper-size). For other
+paper sizes, they are scaled linearly."
+}
+
+someNotes = \repeat unfold 30 { c4 d e f }
+
+\paper {
+ #(set-paper-size (ly:get-option 'paper-size))
+}
+
+\book {
+ \markup { If the paper size remains default, the margin values from
+ paper-defaults-init.ly remain unchanged. }
+ \score {
+ \relative c' {
+ \someNotes
+ \someNotes
+ }
+ }
+}