======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '286'
                                          'artist'  'David Grubbs'
                                     'text_people'  ''
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                                           'title'  "Don't Think"
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                                      'lastfmtags'  ("['indie', 'post rock', 'soundtrackgdchill', 'experimental', 'singer "
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                                     'discogstags'  "['rock', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '10'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-post'
                                             'bpm'  '99'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000A41 00000A0F 00003968 0000844F 00027145 00035BA5 0000710C 00007A20 '
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'TALB' (Album/Movie/Show title)                     'Rickets & Scurvy'
'TBPM' (BPM (beats per minute))                     '99'
'TCON' (Content type, a.k.a. Genre)                 'rock-post'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002-05-20'
'TIT2' (Title/songname/content description)         "Don't Think"
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'David Grubbs'
'TPE2' (Band/orchestra/accompaniment)               'David Grubbs'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Drag City'
'TRCK' (Track number/Position in set)               '2/10'
'TSO2'                                              'Grubbs, David'
'TSOP' (Performer sort order)                       'Grubbs, David'
'TXXX:ASIN'                                         'B000065UO5'
'TXXX:Artists'                                      'David Grubbs'
'TXXX:BARCODE'                                      '781484022428'
'TXXX:CATALOGNUMBER'                                'DC224CD'
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'TXXX:MusicBrainz Album Id'                         '55af4b06-63df-482e-afe6-77640502c8f8'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f72e65e9-3ee7-4dce-9c53-5dc6221f6cd3'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'post rock']
'TXXX:lastfmtags'                                   ['indie', 'post rock', 'soundtrackgdchill', 'experimental', 'singer songwriter']
'TXXX:originalyear'                                 '2002'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.22 dB'
'TXXX:replaygain_track_peak'                        '0.449638'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a8768713-b467-4d3a-bcf3-fb9847f50105')

========================== row from database ==========================
                                              'id'  1516491
                                            'path'  /data/Music/Bulk/00poprockelectronic/David Grubbs/[2002] Rickets and Scurvy/02 Don_t Think.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  286
                                           'genre'  rock-post
                                        'filesize'  6903512
                                           'mtime'  1622801815
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2002] and 02 Don_t rock post
                                      'tag_artist'  David Grubbs
                                     'tag_release'  Rickets & Scurvy
                                       'tag_title'  Don't Think
                                             'bpm'  99.0
                                    'search_title'  'don':1 'dont':3 't':2 'think':4
                                   'search_artist'  'david':1 'grubbs':2
                                  'search_release'  'rickets':1 'scurvy':2
                                     'search_rest'  '00poprockelectronic':1 '2002':2,3 'and':4 'don':5 'post':8 'rock':7 't':6
                                    'search_combo'  '00poprockelectronic':9 '2002':10,11 'and':12 'david':5B 'don':1A,13 'dont':3A 'grubbs':6B 'post':16 'rickets':7C 'rock':15 'scurvy':8C 't':2A,14 'think':4A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'post rock', 'soundtrackgdchill', 'experimental', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'post rock']

============================== file details ==============================
                                           'mtime'  1622801814.980717  (2021-06-04 12:16:54)
                             'size'  6903512