1METADATA block #0
2  type: 0 (STREAMINFO)
3  is last: false
4  length: XXX
5  sample_rate: 44100 Hz
6  channels: 2
7  bits-per-sample: 16
8  total samples: 5880
9  MD5 signature: 74ffd4737eb5488d512be4af58943362
10METADATA block #1
11  type: 4 (VORBIS_COMMENT)
12  is last: false
13  length: XXX
14  comments: 6
15    comment[0]: REPLAYGAIN_TRACK_PEAK=0.99996948
16    comment[1]: REPLAYGAIN_TRACK_GAIN=-7.89 dB
17    comment[2]: REPLAYGAIN_ALBUM_PEAK=0.99996948
18    comment[3]: REPLAYGAIN_ALBUM_GAIN=-7.89 dB
19    comment[4]: artist=1
20    comment[5]: title=2
21METADATA block #2
22  type: 2 (APPLICATION)
23  is last: true
24  length: XXX
25  application ID: 66616b65
26  data contents:
27