Tempo Headings

[Will Oram]

For partmaking purposes I stripped the large print tempo indications 
from a piece and put them in their own \score block. The consequence of 
this is that, back in the full score, these tempo indications only 
print if the instrument below it (flute) is visible at the tempo change 
(i.e., it is playing something).

All tempo indications are placed in a \score block called 'Oneheaders', 
and applied below:

\book {
        \header { \include "header.ly" }
        
        \score {
                \simultaneous {
                        \context StaffGroup ="woodwinds" <<
                                \context GrandStaff ="flutes" <<
                                        \context Staff = "flauti" <<
                                \set Staff.midiInstrument = #"flute"
	                	\set Staff.instrument = \markup { \center-align { 
"Flauto I." } }
	                	\set Staff.instr      = \markup { \center-align { 
"Fl." } }
                                \Onebarlines
                                \Onespacing
                                \Oneheaders
                                \parameters
                                \OnetheFlutes >>
                        \context Staff = "flauti2" <<
                                \set Staff.midiInstrument = #"flute"
	               		\set Staff.instrument = \markup { \center-align { 
"Flauto II." } }
                                \Onebarlines
                                \OnetheFlutessecond >>
                     >> % end flutes
                     \context Staff ="oboi" <<
                        \set Staff.midiInstrument = #"oboe"
	        		\set Staff.instrument = \markup { \center-align { "2 Oboi" } 
}
                                \set Staff.instr = \markup { \center-align { 
"Ob." } }
                                \Onebarlines
                                \OnetheOboes >>

[...]

Thus, at measure 1, 'Allegro Moderator' is printed, because the flute 
is visible on that page. About 100 measures later though, 'più mosso' 
does not print because the topmost instrument is the oboe at that time. 
I tried sticking \Oneheaders in every instrument, but that didn't help.

Suggestions?

Will Oram // Genius @ Large // AIM spamguy21
spamguy (at) foxchange (dot) com // wro1 (at) cwru (dot) edu