return 'R%s' % self.duration.ly_expression ()
+class Break (Music):
+ def __init__ (self, tp="break"):
+ Music.__init__ (self)
+ self.type = tp
+ def print_ly (self, printer):
+ if self.type:
+ printer.dump ("\\%s" % self.type)
+
class StaffGroup:
def __init__ (self, command = "StaffGroup"):
self.stafftype = command