======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Jay Wilbur'
                                     'text_people'  ''
                                         'release'  'Rex  9704'
                                           'title'  'In An 18th Century Drawing Room (vocal - Sam Browne) \x1312-1939'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['united kingdom', 'spotify', 'all', 'uk']"
                                     'discogstags'  "['jazz', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1939'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '106.196'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'GEOB:SfMarkers'                                    GEOB(encoding=<Encoding.LATIN1: 0>, mime='', filename='', desc='SfMarkers', data=b'\x0c\x00\x00\x00d\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Rex  9704'
'TBPM' (BPM (beats per minute))                     '106.196'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1939'
'TIT2' (Title/songname/content description)         'In An 18th Century Drawing Room (vocal - Sam Browne) \x1312-1939'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '173000'
'TPE1' (Lead performer(s)/Soloist(s))               'Jay Wilbur'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'pop']
'TXXX:lastfmtags'                                   ['united kingdom', 'spotify', 'all', 'uk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.85 dB'
'TXXX:replaygain_track_peak'                        '0.555560'

========================== row from database ==========================
                                              'id'  1431347
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1939/Jay Wilbur - In An 18th Century Drawing Room (vocal - Sam Browne) –12-1939.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  prerock-swing
                                        'filesize'  3502310
                                           'mtime'  1620561493
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop –12 prerock swing
                                      'tag_artist'  Jay Wilbur
                                     'tag_release'  Rex  9704
                                       'tag_title'  In An 18th Century Drawing Room (vocal - Sam Browne) 12-1939
                                             'bpm'  106.196
                                    'search_title'  '12':12 '121939':14 '18th':3 '1939':13 'an':2 'browne':10,11 'century':4 'drawing':5 'in':1 'room':6 'sam':9 'vocal':7,8
                                   'search_artist'  'jay':1 'wilbur':2
                                  'search_release'  '9704':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '12':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8
                                    'search_combo'  '00oldiepop':23 '12':12A,24 '121939':14A '18th':3A '1939':13A '9704':18C 'an':2A 'browne':10A,11A 'century':4A 'country':22 'drawing':5A 'exotica':20 'in':1A 'jay':15B 'jazz':19 'oldies':21 'prerock':25 'rex':17C 'room':6A 'sam':9A 'swing':26 'vocal':7A,8A 'wilbur':16B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['united kingdom', 'spotify', 'all', 'uk']
                                        'tag_date'  1939
                                     'discogstags'  ['jazz', 'pop']

============================== file details ==============================
                                           'mtime'  1620561493.2990835  (2021-05-09 13:58:13)
                             'size'  3502310