======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Glenn Miller & His Orchestra & Modernaires'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ("167 It must be Jelly ('cause Jam don't shake like that) - Glenn Miller & His "
 'Orchestra & Modernaires (8-01-1944)')
                                           '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-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '167'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '93.199'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '93.199'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         ("167 It must be Jelly ('cause Jam don't shake like that) - Glenn Miller & His "
 'Orchestra & Modernaires (8-01-1944)')
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Glenn Miller & His Orchestra & Modernaires'
'TRCK' (Track number/Position in set)               '167'
'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'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.21 dB'
'TXXX:replaygain_track_peak'                        '0.373006'

========================== row from database ==========================
                                              'id'  1498959
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/167 It must be Jelly (_cause Jam don_t shake like that) - Glenn Miller & His Orchestra & Modernaires (8-01-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  prerock-swing
                                        'filesize'  2860536
                                           'mtime'  1620561853
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 (_cause don_t prerock swing
                                      'tag_artist'  Glenn Miller & His Orchestra & Modernaires
                                     'tag_release'  None
                                       'tag_title'  167 It must be Jelly ('cause Jam don't shake like that) - Glenn Miller & His Orchestra & Modernaires (8-01-1944)
                                             'bpm'  93.199
                                    'search_title'  '01':22 '167':1 '1944':23 '8':21 '8011944':24 'be':4 'cause':6,7 'don':9 'dont':11 'glenn':16 'his':18 'it':2 'jam':8 'jelly':5 'like':13 'miller':17 'modernaires':20 'must':3 'orchestra':19 'shake':12 't':10 'that':14,15
                                   'search_artist'  'glenn':1 'his':3 'miller':2 'modernaires':5 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 'cause':7,8 'country':4 'don':9 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'swing':12 't':10
                                    'search_combo'  '00oldiepop':34 '01':22A '167':1A '1943':35 '1944':23A '8':21A '8011944':24A 'be':4A 'cause':6A,7A,36,37 'country':33 'don':9A,38 'dont':11A 'exotica':31 'glenn':16A,25B 'his':18A,27B 'it':2A 'jam':8A 'jazz':30 'jelly':5A 'like':13A 'miller':17A,26B 'modernaires':20A,29B 'must':3A 'oldies':32 'orchestra':19A,28B 'prerock':40 'shake':12A 'swing':41 't':10A,39 'that':14A,15A
                                    'tag_tracknum'  167
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561853.0494251  (2021-05-09 14:04:13)
                             'size'  2860536