======================== unified (from filesystem) ========================
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                                        'duration'  '17'
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                                         'release'  'The Approach'
                                           'title'  'Logic + The Lack Thereof'
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                                      'lastfmtags'  ("['industrial metal', 'female vocalists', 'industrial', 'electronic', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '129.730'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '129.730'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Logic + The Lack Thereof'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'I:Scintilla'
'TPE2' (Band/orchestra/accompaniment)               'I:scintilla'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['industrial metal',
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 'industrial',
 'electronic',
 'industrial rock']
'TXXX:q-bass'                                       '1'
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'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
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'TXXX:replaygain_track_gain'                        '-1.01 dB'
'TXXX:replaygain_track_peak'                        '0.605068'

========================== row from database ==========================
                                              'id'  1364428
                                            'path'  /data/Music/Bulk/00dwimp/I_Scintilla/The Approach/I _Scintilla_-_The_Approach_-_03_-_Logic___The_Lack_Thereof.mp3
                                         'working'  None
                                         'bitrate'  166
                                    'duration_sec'  17
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  495489
                                           'mtime'  1620296660
                                   'redo_metaread'  0
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                                     'tag_release'  The Approach
                                       'tag_title'  Logic + The Lack Thereof
                                             'bpm'  129.73
                                    'search_title'  'lack':3 'logic':1 'the':2 'thereof':4
                                   'search_artist'  'i':1 'iscintilla':3 'scintilla':2
                                  'search_release'  'approach':2 'the':1
                                     'search_rest'  '00dwimp':1 '03':7 'approach':6 'darkwave':16 'ebm':13 'eid':12 'i':2 'industrial':15 'lack':10 'logic':8 'or':14 'scintilla':3,4 'the':5,9 'thereof':11
                                    'search_combo'  '00dwimp':10 '03':16 'approach':9C,15 'darkwave':25 'ebm':22 'eid':21 'i':5B,11 'industrial':24 'iscintilla':7B 'lack':3A,19 'logic':1A,17 'or':23 'scintilla':6B,12,13 'the':2A,8C,14,18 'thereof':4A,20
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['industrial metal', 'female vocalists', 'industrial', 'electronic', 'industrial rock']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620296660.3361974  (2021-05-06 12:24:20)
                             'size'  495489