(paper-width (ly:output-def-lookup defs 'paper-width))
(paper-height (ly:output-def-lookup defs 'paper-height))
(output-scale (ly:output-def-lookup defs 'output-scale)))
(paper-width (ly:output-def-lookup defs 'paper-width))
(paper-height (ly:output-def-lookup defs 'paper-height))
(output-scale (ly:output-def-lookup defs 'output-scale)))