======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '151'
                                          'artist'  'Georgia White'
                                     'text_people'  ''
                                         'release'  'DOCD 5302'
                                           'title'  'Grandpa And Grandma'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'boogie', 'female vocalists', 'delta blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '98.838'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     'DOCD 5302'
'TBPM' (BPM (beats per minute))                     '98.838'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1937'
'TIT2' (Title/songname/content description)         'Grandpa And Grandma'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Georgia White'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'boogie', 'female vocalists', 'delta blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.04 dB'
'TXXX:replaygain_track_peak'                        '0.511685'

========================== row from database ==========================
                                              'id'  674319
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/DOCD 5302 - Georgia White 02 (1936-1937) 128/Georgia White - 02-16 - Grandpa And Grandma (19370128).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  151
                                           'genre'  prerock-jb-blues
                                        'filesize'  2428161
                                           'mtime'  1620402270
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country (1936 1937) 128 16 (19370128) prerock jb blues
                                      'tag_artist'  Georgia White
                                     'tag_release'  DOCD 5302
                                       'tag_title'  Grandpa And Grandma
                                             'bpm'  98.838
                                    'search_title'  'and':2 'grandma':3 'grandpa':1
                                   'search_artist'  'georgia':1 'white':2
                                  'search_release'  '5302':2 'docd':1
                                     'search_rest'  '128':9 '1936':5,6 '1937':7,8 '19370128':10,11 'blues':14 'country':4 'exotica':2 'jazz':1 'jb':13 'oldies':3 'prerock':12
                                    'search_combo'  '128':16 '1936':12,13 '1937':14,15 '19370128':17,18 '5302':7C 'and':2A 'blues':21 'country':11 'docd':6C 'exotica':9 'georgia':4B 'grandma':3A 'grandpa':1A 'jazz':8 'jb':20 'oldies':10 'prerock':19 'white':5B
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'boogie', 'female vocalists', 'delta blues']
                                        'tag_date'  1937
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620402269.5897644  (2021-05-07 17:44:29)
                             'size'  2428161