Issue 2331 in lilypond: Frequent differences in input/regression/midi/key-option.midi

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect

New issue 2331 by address@hidden: Frequent differences in  
input/regression/midi/key-option.midi
http://code.google.com/p/lilypond/issues/detail?id=2331

For less than a month, I frequently get the following in regtest  
comparisons for input/regression/midi/key-option.midi.  It does not seem  
related to the change being tested.

@@ -7,3 +7,17 @@
   ev (0, (144, 65, 90))
   ev (384, (144, 65, 0))
   ev (384, (144, 67, 90))
+  ev (768, (144, 67, 0))
+  ev (768, (144, 69, 90))
+  ev (1152, (144, 69, 0))
+  ev (1152, (144, 70, 90))
+  ev (1536, (144, 70, 0))
+  ev (1536, (144, 72, 90))
+  ev (1920, (144, 72, 0))
+  ev (1920, (144, 74, 90))
+  ev (2304, (144, 74, 0))
+  ev (2304, (144, 76, 90))
+  ev (2688, (144, 76, 0))
+  ev (2688, (144, 77, 90))
+  ev (3072, (144, 77, 0))
+  ev (3072, (255, 47, ''))

I am labelling this as a defect since output should be reproducible, though  
it is conceivably build system related.  Someone needs to analyze the  
attached Midi and check what the additional info is.

Attachments:
        key-option.midi  206 bytes