HistoryInterface — Abjad v1.1.1 documentation

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# HistoryInterface

class `abjad.history.interface.` `HistoryInterface`(_client)

  Bases: `abjad.core.interface._Interface`

  Completely empty namespace available for composer labelling.

      abjad> t = Note(0, (1, 4))
      abjad> t.history.previous_transform = 'foo'
      abjad> t.history.previous_transform
      'foo'

  Abjad ignores HistoryInterface attributes and usage completely.

  The HistoryInterface handles no LilyPond grob.

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