iterate.namesakes_from — Abjad v1.1.1 documentation

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# iterate.namesakes_from

`abjad.tools.iterate.` `namesakes_from`(component, backwards=False)

  Yield left-to-right namesakes of component starting from component.

      abjad> container = Container(Staff(construct.run(2)) * 2)
      abjad> container.parallel = True
      abjad> container[0].name = 'staff 1'
      abjad> container[1].name = 'staff 2'
      abjad> score = Score([ ])
      abjad> score.parallel = False
      abjad> score.extend(container * 2)
      abjad> pitchtools.diatonicize(score)
      abjad> print score.format
      \new Score {
              <<
                      \context Staff = "staff 1" {
                              c'8
                              d'8
                      }
                      \context Staff = "staff 2" {
                              e'8
                              f'8
                      }
              >>
              <<
                      \context Staff = "staff 1" {
                              g'8
                              a'8
                      }
                      \context Staff = "staff 2" {
                              b'8
                              c''8
                      }
              >>
      }

      abjad> for staff in iterate.namesakes_from(score[0][0]):
      ...     print staff.format
      ...
      \context Staff = "staff 1" {
              c'8
              d'8
      }
      \context Staff = "staff 1" {
              g'8
              a'8
      }

  When `backwards = True` yield right-to-left.

      abjad> for staff in iterate.namesakes_from(score[-1][0], backwards = True):
      ...     print staff.format
      ...
      \context Staff = "staff 1" {
              g'8
              a'8
      }
      \context Staff = "staff 1" {
              c'8
              d'8
      }

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