======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '188'
                                          'artist'  'Ernest Tubb'
                                     'text_people'  ''
                                         'release'  'Cindy Walker - (Warped SW04)'
                                           'title'  'Warm Red Wine'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'western swing', 'honky tonk', 'old country', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '141.6'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Cindy Walker - (Warped SW04)'
'TBPM' (BPM (beats per minute))                     '141.6'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Warm Red Wine'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '188577'
'TPE1' (Lead performer(s)/Soloist(s))               'Ernest Tubb'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Bear Family'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['country', 'western swing', 'honky tonk', 'old country', 'classic country']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.338550'

========================== row from database ==========================
                                              'id'  647250
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Warped Records Collection/Warped SW04 - Cindy Walker - The Songwriter Series 2010/10. Warm Red Wine.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  188
                                           'genre'  loc-namerica-country
                                        'filesize'  8249216
                                           'mtime'  1621629013
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Records Collection The Songwriter Series 2010 10. loc namerica country
                                      'tag_artist'  Ernest Tubb
                                     'tag_release'  Cindy Walker - (Warped SW04)
                                       'tag_title'  Warm Red Wine
                                             'bpm'  141.6
                                    'search_title'  'red':2 'warm':1 'wine':3
                                   'search_artist'  'ernest':1 'tubb':2
                                  'search_release'  'cindy':1 'sw04':5,6 'walker':2 'warped':3,4
                                     'search_rest'  '10':7,8 '2010':6 'collection':2 'country':11 'loc':9 'namerica':10 'records':1 'series':5 'songwriter':4 'the':3
                                    'search_combo'  '10':18,19 '2010':17 'cindy':6C 'collection':13 'country':22 'ernest':4B 'loc':20 'namerica':21 'records':12 'red':2A 'series':16 'songwriter':15 'sw04':10C,11C 'the':14 'tubb':5B 'walker':7C 'warm':1A 'warped':8C,9C 'wine':3A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'western swing', 'honky tonk', 'old country', 'classic country']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629012.7531977  (2021-05-21 22:30:12)
                             'size'  8249216