Problems with several parts, movements

[Ben Lewis]

I've been typesetting a Telemann concerto for a baroque ensemble that I play 
in, and I've been having difficulties with actually producing more than one 
part from the same file (I need to input Violin 1,2 and Viola parts, since we 
only have hand-written ones.) My other problem comes from the fact that if I 
give multiple "piece" names in the \header section, only the last one is 
printed for all of them. Thus, while I should have Largo, Allegro, Largo, 
Presto, I only have Presto, Presto, Presto, Presto. Am I doing something 
horribly wrong with this? (I can include input/output files, I'm pretty sure 
no copyright still exists on Telemann, and the handwritten parts I have 
contain no such information.)
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