======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  'Louis Levy Orchestra'
                                     'text_people'  ''
                                         'release'  'HMV BD- 368'
                                           'title'  ('Internationale & Life Is Empty Without Love (vocal - Edward Molloy) '
 '\x1310-1936')
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '113.772'
                                             'key'  '6B'
                                        '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)                     'HMV BD- 368'
'TBPM' (BPM (beats per minute))                     '113.772'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         ('Internationale & Life Is Empty Without Love (vocal - Edward Molloy) '
 '\x1310-1936')
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '175000'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis Levy Orchestra'
'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:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.553666'

========================== row from database ==========================
                                              'id'  1445332
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Louis Levy Orchestra - Internationale & Life Is Empty Without Love (vocal - Edward Molloy) –10-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  prerock-swing
                                        'filesize'  3553455
                                           'mtime'  1620560911
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop –10 prerock swing
                                      'tag_artist'  Louis Levy Orchestra
                                     'tag_release'  HMV BD- 368
                                       'tag_title'  Internationale & Life Is Empty Without Love (vocal - Edward Molloy) 10-1936
                                             'bpm'  113.772
                                    'search_title'  '10':12 '101936':14 '1936':13 'edward':9 'empty':4 'internationale':1 'is':3 'life':2 'love':6 'molloy':10,11 'vocal':7,8 'without':5
                                   'search_artist'  'levy':2 'louis':1 'orchestra':3
                                  'search_release'  '368':4 'bd':2,3 'hmv':1
                                     'search_rest'  '00oldiepop':5 '10':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8
                                    'search_combo'  '00oldiepop':26 '10':12A,27 '101936':14A '1936':13A '368':21C 'bd':19C,20C 'country':25 'edward':9A 'empty':4A 'exotica':23 'hmv':18C 'internationale':1A 'is':3A 'jazz':22 'levy':16B 'life':2A 'louis':15B 'love':6A 'molloy':10A,11A 'oldies':24 'orchestra':17B 'prerock':28 'swing':29 'vocal':7A,8A 'without':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560910.779781  (2021-05-09 13:48:30)
                             'size'  3553455