code: def align_lyric_note(self, recording_id, mid_info, xml_info, sil):
      # NOTE(Yuning): Some XMLs cannot be used directly, we only extract
      # lyric information from xmls and assign them to the notes from MIDIs
  
      # load scores from mid and xml
      mid_tempo, note_lis = mid_info
      xml_tempo, lyric_lis = xml_info
      # fix errors dataset
      # add pause into xml
      if "41" in recording_id:
          lyric_lis[49].lyric = "P"
          lyric_lis[49].st = 22.612
          lyric_lis[48].et = 22.612
      note_seq = []
      # check tempo
      if mid_tempo != xml_tempo:
          raise ValueError(
              "Different tempo from XML and MIDI in {}.".format(
                  recording_id
              )
          )
      k = 0
      for i in range(len(note_lis)):
          note = note_lis[i]
          # skip rest notes in xml
          while k < len(lyric_lis) and lyric_lis[k].lyric in sil:
              k += 1
          if k >= len(lyric_lis):
              raise ValueError(
                  "lyrics from XML is longer than MIDI in {}.".format(
                      recording_id
                  )
              )
          # assign current lyric to note
          if note.lyric == "*":
              # NOTE(Yuning): In natsume, for lyric with 'っ', the note shouldn't be
              # separate two notes in MIDI. Special check for midi might be added in
              # other datasets like, 'note_lis[i + 1].midi == lyric_lis[k].midi'
              if note.midi == lyric_lis[k].midi:
                  if (
                      "っ" in lyric_lis[k].lyric
                  ):  # and note_lis[i + 1].midi == lyric_lis[k].midi:
                      note_dur = int(
                          (note_lis[i + 1].et - note.st) * 80 + 0.5
                      )
                      xml_dur = int(
                          (lyric_lis[k].et - lyric_lis[k].st) * 80 + 0.5
                      )
                      # conbine the two notes
                      if note_dur == xml_dur:
                          note_lis[i + 1].st = note.st
                          note_lis[i + 1].midi = note.midi
                          continue
                  note.lyric = lyric_lis[k].lyric
                  note_seq.append(note)
                  k += 1
              else:
                  raise ValueError(
                      "Mismatch in XML {}-th: {} and MIDI {}-th of {}.".format(
                          k, lyric_lis[k].lyric, i, recording_id
                      )
                  )
          else:
              # add pauses from mid.
              note_seq.append(note)
      return xml_tempo, note_seq
  
file_path: espnet/egs2/natsume/svs1/local/prep_segments.py
imports: import os
  from egs2.TEMPLATE.svs1.pyscripts.utils.prep_segments import DataHandler, LabelInfo, SegInfo, get_parser
  from espnet2.fileio.score_scp import MIDReader
label_desc: Use image node_id 5 for calling the NatsumeDataHandler obj's underlying member method code with example usage: obj.align_lyric_note(recording_id, mid_info, xml_info, sil) and returns: xml_tempo,  note_seq