\score {
\context PianoStaff \notes <
- \context Staff = top { \key d \major; \time 4/4;
+ \context Staff = top { \key d \major \time 4/4
\soprano
}
- \context Staff = bottom < \key d \major; \time 4/4; \clef bass;
+ \context Staff = bottom < \key d \major \time 4/4 \clef bass
\context Voice = up { \tenor }
\context Voice = down { \bass }
>