Add a regression test for 453.

diff --git a/input/regression/chord-tremolo-scaled-durations.ly b/input/regression/chord-tremolo-scaled-durations.ly
new file mode 100644 (file)
index 0000000..9822581
--- /dev/null
+++ b/input/regression/chord-tremolo-scaled-durations.ly
@@ -0,0 +1,15 @@
+\version "2.11.32"
+
+\header {
+  texidoc = "Don't allow scaled durations to confuse the tremolo beaming.
+The tremolos should each have 3 beams."
+}
+
+{
+  \time 3/4
+  \repeat tremolo 12 {e'32 f'}
+  \scaleDurations #'(3 . 4) {
+    \repeat tremolo 12 {e'32 f'} r4
+  }
+}
+