A convert-ly issue? 1.6.x > 1.7.11 > 1.7.25

[Hans Forbrich]

I have a number of scores that I'd originally input & run successfully
in Lilypond 1.6.x (Cygwin build around Sept last year), then convert-ly
to 1.7.11 & 12 early this year and run successfully.

I just tried the previous version against the 1.7.25 build and it
failed.  After convert-ly it still fails with the same message.  The
short error mesage out of Lilypond 1.7.25 is copied at the bottom.

Commenting the bulk of the source out, it appears the offending
construct is

    bes^#'( italic "decresc." ) a g f |

1) Should this be rewrittend to use the new Markup capability?
2) If so, should convert-ly handle this?

TIA
/Hans

-------------------------------
output of "ly2dvi -P All2 > All2.log 2>&1"  under SuSE 8.2.  (All
prereq's upgraded to latest sources as of June 23)

ly2dvi (GNU LilyPond) 1.7.25
Running /usr/local/bin/lilypond...GNU LilyPond 1.7.25
Now processing: `All2.ly'
Parsing...
Interpreting music...[8][16][24][32][40][45]
Preprocessing graphical objects...
Calculating line breaks...
[3][6][9][12][15][18][21][24][27][30][33][36][39][42]
paper output to `All2.tex'...
writing header field `title' to `All2.title'...
writing header field `composer' to `All2.composer'...
writing header field `arranger' to `All2.arranger'...
Backtrace:
In unknown file:
   ?: 0* [Axis_group_interface::group_extent_callback #<Grob System > 1]

   ?: 1* [Side_position_interface::aligned_side #<Grob BarNumber > 1]
   ?: 2* [Align_interface::alignment_callback #<Grob VerticalAlignment >
1]
   ?: 3* [Hara_kiri_group_spanner::y_extent #<Grob HaraKiriVerticalGroup
> 1]
   ?: 4* [Side_position_interface::aligned_side #<Grob TextScript > 1]
   ?: 5* [Grob::molecule_extent #<Grob TextScript > 1]
   ?: 6* [brew-new-markup-molecule #<Grob TextScript >]
In /usr/local/share/lilypond/1.7.25/scm/new-markup.scm:
 664: 7* (let* (# #) (if # # #))
 667: 8  (if (markup? t) (interpret-markup grob chain ...) ...)
 669: 9  [Text_item::text_to_molecule #<Grob TextScript > (italic "a
tempo") ...]

/usr/local/share/lilypond/1.7.25/scm/new-markup.scm:669:9: In procedure
assoc in expression (Text_item::text_to_molecule grob t ...):
/usr/local/share/lilypond/1.7.25/scm/new-markup.scm:669:9: Wrong type
argument in position 2 (expecting association list): italic


ly2dvi: error: LilyPond failed on input file All2 (exit status 2)
ly2dvi: warning: Running LilyPond failed. Rerun with --verbose for a
trace.