======================== unified (from filesystem) ========================
                                         'bitrate'  '180.986'
                                        'duration'  '176'
                                          'artist'  'The Civil Wars'
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                                         'release'  'Barton Hollow'
                                           'title'  'Forget Me Not'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '12'
                                            'date'  '2011'
                                        'comments'  ''
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======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '145.895'
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'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011-02-01'
'TIT2' (Title/songname/content description)         'Forget Me Not'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Civil Wars'
'TPE2' (Band/orchestra/accompaniment)               'The Civil Wars'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'sensibility music LLC'
'TRCK' (Track number/Position in set)               '11/12'
'TSO2'                                              'Civil Wars, The'
'TSOP' (Performer sort order)                       'Civil Wars, The'
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'TXXX:Acoustid Id'                                  'c5d61a83-13bf-4471-ac0b-ef05a99ef67c'
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'TXXX:MusicBrainz Album Id'                         '2edc3786-e006-4355-acff-e9037fe0b775'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '91dad7e7-0bf6-47e8-bd42-ef1fac32c729'
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'TXXX:lastfmtags'                                   ['loved', 'indie', 'indie folk', 'acoustic', 'folk', 'singer songwriter']
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'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
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'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.446960'
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========================== row from database ==========================
                                              'id'  243823
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Civil Wars/11 - Forget Me Not.mp3
                                         'working'  None
                                         'bitrate'  181
                                    'duration_sec'  176
                                           'genre'  ifs-songwriter-indie;ifs-songwriter-folk
                                        'filesize'  4003656
                                           'mtime'  1637330516
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 11 ifs songwriter indie;ifs songwriter folk
                                      'tag_artist'  The Civil Wars
                                     'tag_release'  Barton Hollow
                                       'tag_title'  Forget Me Not
                                             'bpm'  145.895
                                    'search_title'  'forget':1 'me':2 'not':3
                                   'search_artist'  'civil':2 'the':1 'wars':3
                                  'search_release'  'barton':1 'hollow':2
                                     'search_rest'  '00singer':1 'eos':3 'folk':9 'ifs':4,6,8 'indie':5,7 'songwriter':2
                                    'search_combo'  '00singer':9 'barton':7C 'civil':5B 'eos':11 'folk':17 'forget':1A 'hollow':8C 'ifs':12,14,16 'indie':13,15 'me':2A 'not':3A 'songwriter':10 'the':4B 'wars':6B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['loved', 'indie', 'indie folk', 'acoustic', 'folk', 'singer songwriter']
                                        'tag_date'  2011
                                     'discogstags'  ['folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1637330515.679155  (2021-11-19 15:01:55)
                             'size'  4003656