======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '115'
                                          'artist'  'PAUL ROBESON '
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'EZEKIEL'
                                           '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-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'folk', 'spiritual', 'gospel', 'american']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '136.092'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '136.092'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'EZEKIEL'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'PAUL ROBESON '
'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:lastfmtags'                                   ['blues', 'folk', 'spiritual', 'gospel', 'american']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.85 dB'
'TXXX:replaygain_track_peak'                        '0.421142'

========================== row from database ==========================
                                              'id'  1158908
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Paul Robeson - Ezekiel Saw de Wheel.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  115
                                           'genre'  prerock-vocal
                                        'filesize'  1857536
                                           'mtime'  1620666361
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Paul Robeson Ezekiel Saw de Wheel prerock vocal
                                      'tag_artist'  PAUL ROBESON 
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  EZEKIEL
                                             'bpm'  136.092
                                    'search_title'  'ezekiel':1
                                   'search_artist'  'paul':1 'robeson':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'de':12 'exotica':2 'ezekiel':10 'jazz':1 'oldies':3 'paul':8 'prerock':14 'robeson':9 'saw':11 'vocal':15 'wheel':13
                                    'search_combo'  '00oldiepop':12 '1920s':13 '1930s':14 '20s':4C '30s':6C 'and':5C 'country':11 'de':19 'exotica':9 'ezekiel':1A,17 'jazz':8 'oldies':10 'paul':2B,15 'popular':7C 'prerock':21 'robeson':3B,16 'saw':18 'vocal':22 'wheel':20
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'folk', 'spiritual', 'gospel', 'american']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666361.1860673  (2021-05-10 19:06:01)
                             'size'  1857536