Editing Schenkerian analysis (section)

===Interruption===
The interruption (''Unterbrechung'') is an elaboration of the fundamental line, which is interrupted at its last passing note, {{music|scale|2}}, before it reaches its goal. As a result, the bass arpeggiation itself is also interrupted at the divider at the fifth (V). Both the fundamental line and the bass arpeggiation are bound to return to their starting point and the fundamental structure repeats itself, eventually reaching its goal. The interruption is the main form-generating elaboration: it often is used in binary forms (when the first part ends on the dominant) or, if the elaboration of the "dividing dominant", {{music|scale|2}} above V, takes some importance, it may produce ternary form, typically sonata form.<ref>''Free Composition'', §§ 87–101.</ref>