\version "2.16.1" \include "clementi-op42-mus-L48-bach-polonaise.ily" % LESSON XLVIII. Polonaise (E Maj) by Bach (BWV 817). \book { \bookOutputName "clementi-op42-les48-bach-polonaise" \score { \new PianoStaff \with { instrumentName = \pieceLegend } << \new Staff = "upper" { \global \LessonXLVIIIUpper } \new Staff = "lower" { \global \LessonXLVIIILower } >> \midi { } } }