(let*
((systems (ly:score-embedded-format score paper))
(1st (vector-ref systems 0))
- (stencil (ly:paper-line-stencil 1st)) )
+ (stencil (ly:paper-system-stencil 1st)) )
(ly:stencil-align-to! stencil Y CENTER)
(display (ly:stencil-extent stencil X))