code: public void setStaffLine(JStaffLine staffLine) {
  		if (m_normalizedChords!=null) {
              for (JChord m_normalizedChord : m_normalizedChords) {
                  m_normalizedChord.setStaffLine(staffLine);
              }
  		} else {
              for (JNote m_sNoteInstance : m_sNoteInstances) {
                  m_sNoteInstance.setStaffLine(staffLine);
              }
  		}
  		super.setStaffLine(staffLine);
  	}
docs: Sets the staff line this chord belongs to.