======================== unified (from filesystem) ========================
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                                        'duration'  '85'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '15'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '89.810'
                                             'key'  '9A'
                                        'acoustid'  'd23c7365-f685-4b45-8a91-b32c5b11acc3'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000043C 00000274 00015701'
'COMM:iTunNORM:eng'                                 (' 0000043C 00000274 00015701 000085CA 0000ED72 0000ED8D 00008112 00007129 '
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'COMM:iTunes_CDDB_IDs:eng'                          '15+04D7CBDBACE5ACBEBD7BBA63FE0D27F6+942867'
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'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-09-25'
'TENC' (Encoded by)                                 'iTunes v4.5.0.31'
'TIT2' (Title/songname/content description)         'Hit on the Head'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gomez'
'TPE2' (Band/orchestra/accompaniment)               'Gomez'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hut Recordings'
'TRCK' (Track number/Position in set)               '4/15'
'TSO2'                                              'Gomez'
'TSOP' (Performer sort order)                       'Gomez'
'TSRC' (ISRC (international standard recording code))  'GBAAA0000749'
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'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'blues rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'british', 'indie rock', 'rock']
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'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
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'TXXX:replaygain_track_gain'                        '+2.16 dB'
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========================== row from database ==========================
                                              'id'  1376448
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Gomez - Abandoned Shopping Trolley Hotline (Disc/1-04 Hit On The Head.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  85
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  1720699
                                           'mtime'  1621697228
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock (Disc 1 04 On The ifs songwriter indie rock
                                      'tag_artist'  Gomez
                                     'tag_release'  Abandoned Shopping Trolley Hotline
                                       'tag_title'  Hit on the Head
                                             'bpm'  89.81
                                    'search_title'  'head':4 'hit':1 'on':2 'the':3
                                   'search_artist'  'gomez':1
                                  'search_release'  'abandoned':1 'hotline':4 'shopping':2 'trolley':3
                                     'search_rest'  '00poprockelectronic':1 '1':6 'disc':4,5 'ifs':9 'indie':11 'indierock':3 'on':7 'poprock':2 'rock':12 'songwriter':10 'the':8
                                    'search_combo'  '00poprockelectronic':10 '1':15 'abandoned':6C 'disc':13,14 'gomez':5B 'head':4A 'hit':1A 'hotline':9C 'ifs':18 'indie':20 'indierock':12 'on':2A,16 'poprock':11 'rock':21 'shopping':7C 'songwriter':19 'the':3A,17 'trolley':8C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'british', 'indie rock', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'blues rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697227.8491168  (2021-05-22 17:27:07)
                             'size'  1720699