======================== unified (from filesystem) ========================
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                                        'duration'  '255'
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                                           'title'  'Third Eye (demo)'
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                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'female vocalists', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '16'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '123'
                                             'key'  '7B'
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rest: ''

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'TBPM' (BPM (beats per minute))                     '123'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDOR' (Original release time)                      '2015'
'TDRC' (Recording time)                             '2015-06-02'
'TIT2' (Title/songname/content description)         'Third Eye (demo)'
'TKEY' (Initial key)                                '7B'
'TLAN' (Language(s))                                'eng'
'TLEN' (Length)                                     '255880'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Florence + the Machine'
'TPE2' (Band/orchestra/accompaniment)               'Florence + the Machine'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Republic Records'
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'TSO2'                                              'Florence and the Machine'
'TSOP' (Performer sort order)                       'Florence and the Machine'
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'TXXX:Artists'                                      'Florence + the Machine'
'TXXX:BARCODE'                                      '602547236050'
'TXXX:CATALOGNUMBER'                                'B002312202'
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'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Deluxe Edition'
'TXXX:Rip date'                                     '2015-05-29'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:Source'                                       'CD'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'female vocalists', 'british']
'TXXX:originalyear'                                 '2015'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
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'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
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========================== row from database ==========================
                                              'id'  1253402
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Florence And The Machine - 14 - Florence + The Machine - How Big, How Blue, How Beautiful/15-florence_and_the_machine-third_eye_(demo).mp3
                                         'working'  None
                                         'bitrate'  260
                                    'duration_sec'  255
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  8402652
                                           'mtime'  1620645440
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos And The 14 The 15 florence_and_the_machine third_eye_(demo) ifs songwriter pop
                                      'tag_artist'  Florence + the Machine
                                     'tag_release'  How Big, How Blue, How Beautiful
                                       'tag_title'  Third Eye (demo)
                                             'bpm'  123.0
                                    'search_title'  'demo':3,4 'eye':2 'third':1
                                   'search_artist'  'florence':1 'machine':3 'the':2
                                  'search_release'  'beautiful':6 'big':2,3 'blue':4,5 'how':1
                                     'search_rest'  '00singer':1 'and':4,7 'demo':12,15 'eos':3 'eye':11,14 'florence':6 'ifs':16 'machine':9 'pop':17 'songwriter':2 'the':5,8 'third':10,13
                                    'search_combo'  '00singer':14 'and':17,20 'beautiful':13C 'big':9C,10C 'blue':11C,12C 'demo':3A,4A,25,28 'eos':16 'eye':2A,24,27 'florence':5B,19 'how':8C 'ifs':29 'machine':7B,22 'pop':30 'songwriter':15 'the':6B,18,21 'third':1A,23,26
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'female vocalists', 'british']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620645439.6818926  (2021-05-10 13:17:19)
                             'size'  8402652