======================== unified (from filesystem) ========================
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                                        'duration'  '268'
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                                           'title'  'Perhaps Vampires Is a Bit Strong But...'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '10'
                                      'tracktotal'  '13'
                                            'date'  '2006'
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                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Whatever People Say I Am, That's What I'm Not"
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'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Perhaps Vampires Is a Bit Strong But...'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arctic Monkeys'
'TRCK' (Track number/Position in set)               '10/13'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ada7a83c-e3e1-40f1-93f9-3e73dbc9298a'
'TXXX:MusicBrainz TRM Id'                           'e9d5d246-1673-43ee-a842-926729e8a0a5'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'british', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Arctic Monkeys/Whatever People Say I Am, That_s What I_m Not/10 - perhaps vampires is a bit strong but.mp3
                                         'working'  None
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                                    'duration_sec'  268
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  7515014
                                           'mtime'  1638554789
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                                      'tag_artist'  Arctic Monkeys
                                     'tag_release'  Whatever People Say I Am, That's What I'm Not
                                       'tag_title'  Perhaps Vampires Is a Bit Strong But...
                                             'bpm'  137.946
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                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'british', 'indie rock', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638554789.3239534  (2021-12-03 19:06:29)
                             'size'  7515014