mupprnt man page
mupprnt — print output from Mup music publisher
mupprnt [mup_options] file
mupprnt provides a way to print Mup output on your printer. The file is Mup input. Any other Mup options can be given, except -C, -E, -f, -F, -l, -m, -M, or -v, which don't produce print output.
Under UNIX, if the environment variable COPIES is set to a number, that number of copies will be printed. Otherwise only 1 copy will be printed.
The GS_DEVICE shell variable must be set to the proper value for your printer type. Mupprnt is a shell script (under UNIX) or batch script (under MS-DOS), so you can customize it if you wish.
gs(1), mup(1), mupdisp(1).
Mup — Music Publisher User's Guide
You must have mup in your PATH. You must have ghostscript (gs or gs386.exe) in your PATH.