* lisp/ob-lilypond.el: Satisfy checkdoc

(org-babel-lilypond-compile-post-tangle):
(org-babel-lilypond-display-pdf-post-tangle):
(org-babel-lilypond-play-midi-post-tangle):
(org-babel-execute:lilypond):
(org-babel-lilypond-tangle):
(org-babel-lilypond-process-basic):
(org-babel-lilypond-parse-line-num):
(org-babel-lilypond-set-header-args):
Fix docstring

lisp/ob-lilypond.el

@@ -58,23 +58,13 @@ and stored in  `org-babel-default-header-args:lilypond'
 See `org-babel-lilypond-set-header-args'.")
 
 (defvar org-babel-lilypond-compile-post-tangle t
-  "Following the org-babel-tangle (C-c C-v t) command,
-org-babel-lilypond-compile-post-tangle determines whether ob-lilypond should
-automatically attempt to compile the resultant tangled file.
-If the value is nil, no automated compilation takes place.
-Default value is t.")
+  "When non-nil, compile tangled file after `org-babel-tangle'.")
 
 (defvar org-babel-lilypond-display-pdf-post-tangle t
-  "Following a successful LilyPond compilation
-org-babel-lilypond-display-pdf-post-tangle determines whether to automate the
-drawing / redrawing of the resultant pdf.  If the value is nil,
-the pdf is not automatically redrawn.  Default value is t.")
+  "When non-nil, display pdf after successful LilyPond compilation.")
 
 (defvar org-babel-lilypond-play-midi-post-tangle t
-  "Following a successful LilyPond compilation
-org-babel-lilypond-play-midi-post-tangle determines whether to automate the
-playing of the resultant midi file.  If the value is nil,
-the midi file is not automatically played.  Default value is t")
+  "When non-nil, play midi file after successful LilyPond compilation.")
 
 (defvar org-babel-lilypond-ly-command ""
   "Command to execute lilypond on your system.
@@ -155,20 +145,17 @@ blocks.")
     body))
 
 (defun org-babel-execute:lilypond (body params)
-  "This function is called by `org-babel-execute-src-block'.
-Depending on whether we are in arrange mode either:
-1. Attempt to execute lilypond block according to header settings
-  (This is the default basic mode)
-2. Tangle all lilypond blocks and process the result (arrange mode)"
+  "Execute lilypond src blcok according to arragne mode.
+See `org-babel-execute-src-block' for BODY and PARAMS.
+When in arrange mode, tangle all blocks and process the result.
+Otherwise, execute block according to header settings."
   (org-babel-lilypond-set-header-args org-babel-lilypond-arrange-mode)
   (if org-babel-lilypond-arrange-mode
       (org-babel-lilypond-tangle)
     (org-babel-lilypond-process-basic body params)))
 
 (defun org-babel-lilypond-tangle ()
-  "ob-lilypond specific tangle, attempts to invoke
-=ly-execute-tangled-ly= if tangle is successful.  Also passes
-specific arguments to =org-babel-tangle=."
+  "Tangle lilypond blocks, then `org-babel-liypond-execute-tangled-ly'."
   (interactive)
   (if (org-babel-tangle nil "yes" "lilypond")
       (org-babel-lilypond-execute-tangled-ly) nil))
@@ -190,7 +177,8 @@ specific arguments to =org-babel-tangle=."
 They are needed for mixing music and text in basic-mode.")
 
 (defun org-babel-lilypond-process-basic (body params)
-  "Execute a lilypond block in basic mode."
+  "Execute a lilypond block in basic mode.
+See `org-babel-execute-src-block' for BODY and PARAMS."
   (let* ((out-file (cdr (assq :file params)))
          (file-type (file-name-extension out-file))
 	 (cmdline (or (cdr (assq :cmdline params))
@@ -308,7 +296,7 @@ LINE is the erroneous line."
       (goto-char temp))))
 
 (defun org-babel-lilypond-parse-line-num (&optional buffer)
-  "Extract error line number."
+  "Extract error line number in BUFFER or `current-buffer'."
   (when buffer (set-buffer buffer))
   (let ((start
          (and (search-backward ":" nil t)
@@ -441,8 +429,7 @@ These depend upon whether we are in Arrange mode i.e. MODE is t."
          ob-lilypond-header-args)))
 
 (defun org-babel-lilypond-set-header-args (mode)
-  "Set org-babel-default-header-args:lilypond
-dependent on ORG-BABEL-LILYPOND-ARRANGE-MODE."
+  "Set lilypond babel header according to MODE."
   (setq org-babel-default-header-args:lilypond
         (org-babel-lilypond-get-header-args mode)))