def OnInstrumentMenu(self, widget):
		instrSelected = False
		if self.project:
			for instr in self.project.instruments:
				if instr.isSelected:
					instrSelected = True
					break
		
		self.importaudiomenuitem.set_sensitive(instrSelected)
		self.removeinstrmenuitem.set_sensitive(instrSelected)
		self.changeinstrmenuitem.set_sensitive(instrSelected)