METADATA block #0
  type: 0 (STREAMINFO)
  is last: false
  length: XXX
  sample_rate: 44100 Hz
  channels: 2
  bits-per-sample: 16
  total samples: 5879
  MD5 signature: 2ea0e6a767b66bf0668523fd77672ce1
METADATA block #1
  type: 3 (SEEKTABLE)
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  length: XXX
  seek points: 1
    point 0: sample_number=0
METADATA block #2
  type: 4 (VORBIS_COMMENT)
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  length: XXX
  comments: 6
    comment[0]: REPLAYGAIN_TRACK_PEAK=0.99996948
    comment[1]: REPLAYGAIN_TRACK_GAIN=-7.89 dB
    comment[2]: REPLAYGAIN_ALBUM_PEAK=0.99996948
    comment[3]: REPLAYGAIN_ALBUM_GAIN=-7.89 dB
    comment[4]: artist=1
    comment[5]: title=2
METADATA block #3
  type: 2 (APPLICATION)
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  length: XXX
  application ID: 66616b65
  data contents:
METADATA block #4
  type: 126 (UNKNOWN)
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  length: XXX
  data contents:
METADATA block #5
  type: 1 (PADDING)
  is last: true
  length: XXX