@@ -0,0 +1,221 @@
+import abjad%0A%0A%0Aclass Glissando(abjad.Glissando):%0A%0A    def _attachment_test(self, component):%0A        return isinstance(component, abjad.Leaf)%0A%0A    def _attachment_test_all(self, component_expression):%0A        return True%0A

Add Glissando without attachment test.