Re: [Lilypond-auto] Issue 2872 in lilypond: Patch: Provide define-session and define-session-public commands

[lilypond]

Updates:
        Cc: address@hidden

Comment #5 on issue 2872 by address@hidden: Patch: Provide define-session and  
define-session-public commands
http://code.google.com/p/lilypond/issues/detail?id=2872

As a test, I used
#(display instrument-equalizer-alist)
#(set! instrument-equalizer-alist
  (append
   '(
     ("flute" . (0 . 0.7))
   )
   instrument-equalizer-alist))

and called lilypond xxx.ly xxx.ly.  The second run of the file produced a  
longer output.  Then I replaced (define-public  
instrument-equalizer-alist '()) in scm/midi.scm with (define-session-public  
instrument-equalizer-alist '()) and the output of the first iteration  
through the file remained identical while the second run also produced the  
same result.

Obviously, this will require followup work to identify data structures that  
should be session-only.  But at least the infrastructure now is there.