======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '243'
                                          'artist'  'Tom Petty And The Heartbreakers'
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                                           'title'  "Stop Draggin' My Heart Around"
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                                      'lastfmtags'  "['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '17'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '106.869'
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                                        'acoustid'  ''
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         "Stop Draggin' My Heart Around"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Petty And The Heartbreakers'
'TRCK' (Track number/Position in set)               '14/17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.507173'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Tom Petty And The Heartbreakers/Anthology - Through The Years Disk 1/Tom Petty and the Heartbreakers - Stop Draggin_ my Heart Around - 14.mp3
                                         'working'  None
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                                    'duration_sec'  243
                                           'genre'  rock-cppex-classic
                                        'filesize'  3905367
                                           'mtime'  1636038995
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy and the Draggin_ my 14 rock cppex classic
                                      'tag_artist'  Tom Petty And The Heartbreakers
                                     'tag_release'  Anthology - Through The Years Disk 1
                                       'tag_title'  Stop Draggin' My Heart Around
                                             'bpm'  106.869
                                    'search_title'  'around':6 'draggin':2,3 'heart':5 'my':4 'stop':1
                                   'search_artist'  'and':3 'heartbreakers':5 'petty':2 'the':4 'tom':1
                                  'search_release'  '1':6 'anthology':1 'disk':5 'the':3 'through':2 'years':4
                                     'search_rest'  'and':2 'classic':8 'classicprogpsy':1 'cppex':7 'draggin':4 'my':5 'rock':6 'the':3
                                    'search_combo'  '1':17C 'and':9B,19 'anthology':12C 'around':6A 'classic':25 'classicprogpsy':18 'cppex':24 'disk':16C 'draggin':2A,3A,21 'heart':5A 'heartbreakers':11B 'my':4A,22 'petty':8B 'rock':23 'stop':1A 'the':10B,14C,20 'through':13C 'tom':7B 'years':15C
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038995.4672205  (2021-11-04 16:16:35)
                             'size'  3905367