======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '171'
                                          'artist'  'Freddy Martin & His Orchestra & Bob Haymes'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ("102 From twilight 'til dawn - Freddy Martin & His Orchestra & Bob Haymes "
 '(4-09-1943)')
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '102'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '144.748'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.748'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         ("102 From twilight 'til dawn - Freddy Martin & His Orchestra & Bob Haymes "
 '(4-09-1943)')
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Freddy Martin & His Orchestra & Bob Haymes'
'TRCK' (Track number/Position in set)               '102'
'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'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.02 dB'
'TXXX:replaygain_track_peak'                        '0.477460'

========================== row from database ==========================
                                              'id'  1519366
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/102 From twilight _til dawn - Freddy Martin & His Orchestra & Bob Haymes (4-09-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  171
                                           'genre'  prerock-swing
                                        'filesize'  2742418
                                           'mtime'  1620561841
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop _til prerock swing
                                      'tag_artist'  Freddy Martin & His Orchestra & Bob Haymes
                                     'tag_release'  None
                                       'tag_title'  102 From twilight 'til dawn - Freddy Martin & His Orchestra & Bob Haymes (4-09-1943)
                                             'bpm'  144.748
                                    'search_title'  '09':14 '102':1 '1943':15 '4':13 '4091943':16 'bob':11 'dawn':6 'freddy':7 'from':2 'haymes':12 'his':9 'martin':8 'orchestra':10 'til':4,5 'twilight':3
                                   'search_artist'  'bob':5 'freddy':1 'haymes':6 'his':3 'martin':2 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8 'til':6
                                    'search_combo'  '00oldiepop':27 '09':14A '102':1A '1943':15A '4':13A '4091943':16A 'bob':11A,21B 'country':26 'dawn':6A 'exotica':24 'freddy':7A,17B 'from':2A 'haymes':12A,22B 'his':9A,19B 'jazz':23 'martin':8A,18B 'oldies':25 'orchestra':10A,20B 'prerock':29 'swing':30 'til':4A,5A,28 'twilight':3A
                                    'tag_tracknum'  102
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561841.4381354  (2021-05-09 14:04:01)
                             'size'  2742418