+\header{
+texidoc="
+Beams, stems and noteheads often have communication troubles, since
+the two systems for y dimensions (1 unit = staffspace, 1 unit = 1
+point) are mixed.
+
+Stems, beams, ties and slurs should behave similarly, when placed
+on the middle staff line. Of course stem-direction is down for high
+notes, and up for low notes.
+";
+}
+
+
\score {
\context Voice \notes\relative c {
b''4 ~ b8()b8 e4 e,