no rests in tablature?

[Karl Berry]

In lilypond 1.6.6 (and earlier), it seems that rests are not output in
tablature.  It would be nice to do this; as it stands, I end up writing
them in by hand :).

Key changes get a warning, too.  Even though they're irrelevant (I
guess) to tablature, it would be nice to accept them, so the same input
could be used, as in the example from the manual.

Thanks,
karl


$ ly2dvi  -P rest.ly
Running LilyPond...
GNU LilyPond 1.6.6
Now processing: `rest.ly'
Parsing...
Interpreting music...
/u/karl/tex/lily/rest.ly:7:14: warning: Junking request: `Key_change_req':
 \key f \major
              

/u/karl/tex/lily/rest.ly:7:2: warning: Junking request: `Rest_req':
 r
  1
[2]
Preprocessing elements... 
Calculating column positions... [2]
paper output to `rest.tex'...
writing header field `title' to `rest.title'...

Analyzing rest.tex...
Running LaTeX...
Running dvips...
DVI output to `rest.dvi'...
PS output to `rest.ps'...

$ cat rest.ly
\version "1.6.6"

\header {
    title = "rest test"
}

topline = \notes {
 \key f \major
 r1
}

\score {
  \context StaffGroup <
    \property Score.BarNumber \override #'padding = #3
    \property Score.BarNumber \override #'break-visibility
                                                = #end-of-line-invisible

    \context Staff = topstaff <
      % Hide fingering number
      \property Staff.Fingering \override #'transparent = ##t
      \topline
    >

    \context TabStaff <
      \property Staff.Stem \override #'direction = #-1  % stems below frets
      \outputproperty #(make-type-checker 'staff-symbol-interface)
                      #'line-count = #4
      \property TabStaff.stringTunings = #'(-5 2 9 16)
      \topline
    >
  >  % end of StaffGroup
}