======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '106'
                                          'artist'  'Dinwiddie Colored Quartet'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Poor Mourner'
                                           'quals'  ("['Q-HAP-2', '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-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']"
                                     'discogstags'  "['gospel', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1902'
                                        'comments'  ''
                                           'genre'  'prerock-spiritual or gospel'
                                             'bpm'  '120.9'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '120.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-spiritual or gospel'
'TDRC' (Recording time)                             '1902'
'TIT2' (Title/songname/content description)         'Poor Mourner'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '106000'
'TPE1' (Lead performer(s)/Soloist(s))               'Dinwiddie Colored Quartet'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['gospel', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.654813'

========================== row from database ==========================
                                              'id'  1464477
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1902/Dinwiddie Colored Quartet - Poor Mourner 1902.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  106
                                           'genre'  prerock-spiritual or gospel
                                        'filesize'  2189941
                                           'mtime'  1642095559
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1902 1902 prerock spiritual gospel
                                      'tag_artist'  Dinwiddie Colored Quartet
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Poor Mourner
                                             'bpm'  120.9
                                    'search_title'  'mourner':2 'poor':1
                                   'search_artist'  'colored':2 'dinwiddie':1 'quartet':3
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1902':6 'country':4 'exotica':2 'gospel':9 'jazz':1 'oldies':3 'prerock':7 'spiritual':8
                                    'search_combo'  '00oldiepop':15 '1902':16 'album':7C 'colored':4B 'country':14 'dinwiddie':3B 'exotica':12 'gospel':19 'jazz':11 'mourner':2A 'non':6C 'nonalbum':8C 'oldies':13 'poor':1A 'prerock':17 'quartet':5B 'spiritual':18 'tracks':9C,10C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', '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-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']
                                        'tag_date'  1902
                                     'discogstags'  ['gospel', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1642095558.6493163  (2022-01-13 18:39:18)
                             'size'  2189941