======================== unified (from filesystem) ========================
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                                        'duration'  '165'
                                          'artist'  'Sarah Vaughan'
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                                           'title'  'Dedicated to You'
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                                      'lastfmtags'  "['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']"
                                     'discogstags'  "['jazz', 'bop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '18'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '132.704'
                                             'key'  '10A'
                                        'acoustid'  '5e07f1d3-cfad-425d-8c26-8c89895e3a2a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:CDDB Disc ID:XXX'                             '0A0E9112'
'COMM:ID3v1 Comment:XXX'                            '0A0E9112'
'TALB' (Album/Movie/Show title)                     "Sarah Vaughan's Finest Hour"
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'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-06-13'
'TIT2' (Title/songname/content description)         'Dedicated to You'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sarah Vaughan'
'TPE2' (Band/orchestra/accompaniment)               'Sarah Vaughan'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Verve'
'TRCK' (Track number/Position in set)               '8/18'
'TSO2'                                              'Vaughan, Sarah'
'TSOP' (Performer sort order)                       'Vaughan, Sarah'
'TSRC' (ISRC (international standard recording code))  'USF094925030'
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'TXXX:Artists'                                      'Sarah Vaughan'
'TXXX:BARCODE'                                      '731454359726'
'TXXX:CATALOGNUMBER'                                '3145435972'
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'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['jazz', 'bop']
'TXXX:lastfmtags'                                   ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
'TXXX:originalyear'                                 '2000'
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'TXXX:q-chart'                                      '3'
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'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
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========================== row from database ==========================
                                              'id'  1531009
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Vaughan, Sarah/Sarah Vaughan_s Finest Hour/Sarah Vaughan - Dedicated to You - 08.mp3
                                         'working'  None
                                         'bitrate'  168
                                    'duration_sec'  165
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  3501875
                                           'mtime'  1620537129
                                   'redo_metaread'  0
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                                      'tag_artist'  Sarah Vaughan
                                     'tag_release'  Sarah Vaughan's Finest Hour
                                       'tag_title'  Dedicated to You
                                             'bpm'  132.704
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                                   'search_artist'  'sarah':1 'vaughan':2
                                  'search_release'  'finest':5 'hour':6 's':3 'sarah':1 'vaughan':2 'vaughans':4
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                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
                                        'tag_date'  2000
                                     'discogstags'  ['jazz', 'bop']

============================== file details ==============================
                                           'mtime'  1620537129.2167432  (2021-05-09 07:12:09)
                             'size'  3501875