Hello Han-Wen and Jan,
using Lilypond version 2.6.3 for Mac OS X (thanks for the GUI, by the
way!)
The following code ...
% all kinds of stuff before this, including
\override Staff.TimeSignature #'transparent = ##t
\override Score.BarNumber #'transparent = ##t
\cadenzaOn
% #### Line 2 ####
a,16 bes1 ( g8 ) e1 \breathe
e'16 e1 ( cis!8 ) bes1 \breathe
g'16 g2 ( fis!16 [ g e cis! d dis e bes! a gis a ] c8 [ bes a8. ) g16
] g4. ( f8 ) f2 \breathe
\cadenzaOff
\time 4/4
\revert Staff.TimeSignature #'transparent
\partial 16*5
a16\pp^\markup { Moderato } ( bes b c cis
\break
% all kinds of stuff after this
.... produced the following compile error ...
programming error: No spacing entry from BreathingSign to `time-
signature'
continuing, cross fingers
The output looks fine - it's just a compile-time error that you can
probably deal with easily.
I used Lilypond 2.2.x for the musical examples in my doctoral
dissertation. Since the topic of my dissertation was Gallay's Non-
Measured Preludes for Horn, Lilypond provided much more flexibility
and control than other notation programs. And the improvements I'm
seeing in 2.6.x - wow! Keep up the great work.
Best wishes,
Scott