- (set! mol (ly:molecule-combine-at-edge mol 0 1 y-rule x-padding))
- (set! mol (ly:molecule-combine-at-edge mol 0 -1 y-rule x-padding))
- (set! mol (ly:molecule-combine-at-edge mol 1 1 x-rule 0))
- (set! mol (ly:molecule-combine-at-edge mol 1 -1 x-rule 0))
+ (set! mol (ly:stencil-combine-at-edge mol 0 1 y-rule x-padding))
+ (set! mol (ly:stencil-combine-at-edge mol 0 -1 y-rule x-padding))
+ (set! mol (ly:stencil-combine-at-edge mol 1 1 x-rule 0))
+ (set! mol (ly:stencil-combine-at-edge mol 1 -1 x-rule 0))