======================== unified (from filesystem) ========================
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                                        'duration'  '165'
                                          'artist'  'Nynke Laverman'
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                                      'lastfmtags'  "['female vocalists', 'fado', 'folk', 'frysk', 'dutch']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '17'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '102'
                                             'key'  '7A'
                                        'acoustid'  '316c782f-1720-4d04-85b5-4f3d2e37a137'
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 000009DB 00000B18 00005E2C 00005F40 00025A0A 0001DD24 0000864D 00008630 '
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'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AEC 00000000006FA404 00000000 003CB53A 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '17+562F4CAD690548676405A9F94EC038E3+10702011'
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'TBPM' (BPM (beats per minute))                     '102'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-05-13'
'TENC' (Encoded by)                                 'iTunes 9.0.2'
'TIT2' (Title/songname/content description)         'De wite moarne'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Nynke Laverman'
'TPE2' (Band/orchestra/accompaniment)               'Nynke Laverman'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'T2 Entertainment'
'TRCK' (Track number/Position in set)               '4/17'
'TSO2'                                              'Laverman, Nynke'
'TSOP' (Performer sort order)                       'Laverman, Nynke'
'TXXX:Acoustid Id'                                  '316c782f-1720-4d04-85b5-4f3d2e37a137'
'TXXX:Artists'                                      'Nynke Laverman'
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'TXXX:MusicBrainz Album Id'                         '4fff1eb0-f9dc-471c-bb62-1096afe2b863'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'fee70253-6252-4552-8966-86ccf3094e94'
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'TXXX:MusicBrainz Release Track Id'                 '7a9d6a2a-3443-3b35-9fcb-4c12230051b4'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['female vocalists', 'fado', 'folk', 'frysk', 'dutch']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.443996'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'455ea08d-ae2a-4ac7-a4d7-e1c4517f4d8f')

========================== row from database ==========================
                                              'id'  1491215
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Nynke Laverman/De Maisfrou/04 De Witte Morgen.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  165
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3991016
                                           'mtime'  1621629376
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch 04 Witte Morgen loc eur netherlands
                                      'tag_artist'  Nynke Laverman
                                     'tag_release'  De Maisfrou
                                       'tag_title'  De wite moarne
                                             'bpm'  102.0
                                    'search_title'  'de':1 'moarne':3 'wite':2
                                   'search_artist'  'laverman':2 'nynke':1
                                  'search_release'  'de':1 'maisfrou':2
                                     'search_rest'  '00dutch':4 '00mid':1 'eur':8 'europe':3 'loc':7 'morgen':6 'netherlands':9 'north':2 'witte':5
                                    'search_combo'  '00dutch':11 '00mid':8 'de':1A,6C 'eur':15 'europe':10 'laverman':5B 'loc':14 'maisfrou':7C 'moarne':3A 'morgen':13 'netherlands':16 'north':9 'nynke':4B 'wite':2A 'witte':12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'fado', 'folk', 'frysk', 'dutch']
                                        'tag_date'  2006
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629376.052482  (2021-05-21 22:36:16)
                             'size'  3991016