======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Gary, Phillip, Dennis, Lindsay & Bing Crosby'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Crosby Christmas (Part 1)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', '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-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;set-th-christmas'
                                             'bpm'  '121.264'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['Debuted 12/23/1950 and peaked at #22 on Various Charts. Source: Pop Hits\r\n'
 '\r\n'
 'Decca 40181',
 'Debuted 1950 and peaked at # on Various Charts. Label/Number: Decca 9-40181. '
 'Billboard Pop Charts (1940-1954)\r\n']
'COMM:ID3v1 Comment:XXX'                            'Debuted 12/23/1950 and peaked'
'TBPM' (BPM (beats per minute))                     '121.264'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'set-th-christmas']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Crosby Christmas (Part 1)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gary, Phillip, Dennis, Lindsay & Bing Crosby'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.13 dB'
'TXXX:replaygain_track_peak'                        '0.526821'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1950014a')

========================== row from database ==========================
                                              'id'  1428292
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/ch1950_014a - gary, phillip, dennis, lindsay & bing crosby - crosby christmas (part 1) 128 js (2.56).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  prerock-unsorted;set-th-christmas
                                        'filesize'  2813952
                                           'mtime'  1620343030
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1950 ch1950_014a gary, phillip, dennis, lindsay bing crosby crosby christmas (part 128 js (2.56) prerock unsorted;set th christmas
                                      'tag_artist'  Gary, Phillip, Dennis, Lindsay & Bing Crosby
                                     'tag_release'  None
                                       'tag_title'  Crosby Christmas (Part 1)
                                             'bpm'  121.264
                                    'search_title'  '1':5,6 'christmas':2 'crosby':1 'part':3,4
                                   'search_artist'  'bing':8 'crosby':9 'dennis':5,6 'gary':1,2 'lindsay':7 'phillip':3,4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '014a':8 '128':21 '1950':6 '2':23 '256':25 '56':24 'bing':16 'ch1950':7 'christmas':18 'country':4 'crosby':17 'dennis':13,14 'exotica':2 'gary':9,10 'jazz':1 'js':22 'lindsay':15 'oldies':3 'part':19,20 'phillip':11,12 'prerock':26 'set':28,30 'th':31 'unsorted':27,29
                                    'search_combo'  '00oldiepop':20 '014a':23 '1':5A,6A '128':36 '1950':21 '2':38 '256':40 '56':39 'bing':14B,31 'ch1950':22 'christmas':2A,33 'country':19 'crosby':1A,15B,32 'dennis':11B,12B,28,29 'exotica':17 'gary':7B,8B,24,25 'jazz':16 'js':37 'lindsay':13B,30 'oldies':18 'part':3A,4A,34,35 'phillip':9B,10B,26,27 'prerock':41 'set':43,45 'th':46 'unsorted':42,44
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343029.50223  (2021-05-07 01:17:09)
                             'size'  2813952