======================== unified (from filesystem) ========================
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                                        'duration'  '292'
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                                     'discogstags'  "['rock', 'folk, world, & country', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '22'
                                            'date'  '2001'
                                        'comments'  ''
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                                             'key'  '12B'
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rest: ''

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

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'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-05-21'
'TIT2' (Title/songname/content description)         'Just Like a Woman'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TPE2' (Band/orchestra/accompaniment)               'Bob Dylan'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '13/22'
'TSO2'                                              'Dylan, Bob'
'TSOP' (Performer sort order)                       'Dylan, Bob'
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'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']
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========================== row from database ==========================
                                              'id'  1267589
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/bob dylan - DISC 1/13 - Just Like a Woman.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  292
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4692061
                                           'mtime'  1636400757
                                   'redo_metaread'  0
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                                      'tag_artist'  Bob Dylan
                                     'tag_release'  The Ultimate Collection
                                       'tag_title'  Just Like a Woman
                                             'bpm'  85.851
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                                   'search_artist'  'bob':1 'dylan':2
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                                     'search_rest'  '00singer':1 '1':7 'bob':4 'disc':6 'dylan':5 'eos':3 'folk':9 'ifs':8 'songwriter':2
                                    'search_combo'  '00singer':10 '1':16 'a':3A 'bob':5B,13 'collection':9C 'disc':15 'dylan':6B,14 'eos':12 'folk':18 'ifs':17 'just':1A 'like':2A 'songwriter':11 'the':7C 'ultimate':8C 'woman':4A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'classic rock', 'folk', 'singer songwriter']
                                        'tag_date'  2001
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636400757.0270882  (2021-11-08 20:45:57)
                             'size'  4692061