1\version "2.19.21"
2
3\header {
4texidoc = "
5Note head completion may be broken into sub-bar units by setting the
6@code{completionUnit} property.
7"
8}
9
10\layout {
11  \context {
12    \Voice
13    \remove "Note_heads_engraver"
14    \consists "Completion_heads_engraver"
15    \remove "Rest_engraver"
16    \consists "Completion_rest_engraver"
17  }
18}
19
20\context Staff \relative {
21  \time 9/8
22  \set completionUnit = #(ly:make-moment 3/8)
23  g'1.. r2
24  \time 6/4
25  \set completionUnit = #(ly:make-moment 1/4)
26  \tupletSpan 4
27  \tuplet 3/2 { e4 c8 f g a4 b8 r4 b8 a4 g8 a e f4 }
28}
29