======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '156'
                                          'artist'  'Edgar Cantrell & Richard Williams'
                                     'text_people'  ''
                                         'release'  'Gramophone Concert GC 4231'
                                           'title'  'All Coons Look Alike To Me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1902'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '84.809'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Gramophone Concert GC 4231'
'TBPM' (BPM (beats per minute))                     '84.809'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1902'
'TIT2' (Title/songname/content description)         'All Coons Look Alike To Me'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Edgar Cantrell & Richard Williams'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+2.76 dB'
'TXXX:replaygain_track_peak'                        '0.390500'

========================== row from database ==========================
                                              'id'  1427728
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1902/Edgar Cantrell & Richard Williams - All Coons Look Alike To Me 20-10-1902.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  156
                                           'genre'  prerock-unsorted
                                        'filesize'  3139250
                                           'mtime'  1621697573
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1902 20 10 1902 prerock unsorted
                                      'tag_artist'  Edgar Cantrell & Richard Williams
                                     'tag_release'  Gramophone Concert GC 4231
                                       'tag_title'  All Coons Look Alike To Me
                                             'bpm'  84.809
                                    'search_title'  'alike':4 'all':1 'coons':2 'look':3 'me':6 'to':5
                                   'search_artist'  'cantrell':2 'edgar':1 'richard':3 'williams':4
                                  'search_release'  '4231':4 'concert':2 'gc':3 'gramophone':1
                                     'search_rest'  '00oldiepop':5 '1902':6 '20':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':19 '1902':20 '20':21 '4231':14C 'alike':4A 'all':1A 'cantrell':8B 'concert':12C 'coons':2A 'country':18 'edgar':7B 'exotica':16 'gc':13C 'gramophone':11C 'jazz':15 'look':3A 'me':6A 'oldies':17 'prerock':22 'richard':9B 'to':5A 'unsorted':23 'williams':10B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1902
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697572.578042  (2021-05-22 17:32:52)
                             'size'  3139250