======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '181'
                                          'artist'  'Russ Morgan & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Blue Christmas'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['salon', 'jazz', 'elevator to heaven']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1949'
                                        'comments'  ''
                                           'genre'  'prerock-band;set-th-christmas'
                                             'bpm'  '97.085'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['Debuted 1949 and peaked at #13 on Various Charts. Source: Pop Hits',
 'Debuted 1949 and peaked at # on Various Charts. Label/Number: Decca 24766. '
 'Billboard Pop Charts (1940-1954)\r\n']
'COMM:ID3v1 Comment:XXX'                            'Debuted 1949 and peaked at #13'
'TBPM' (BPM (beats per minute))                     '97.085'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-band', 'set-th-christmas']
'TDRC' (Recording time)                             '1949'
'TIT2' (Title/songname/content description)         'Blue Christmas'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Russ Morgan & His Orchestra'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['salon', 'jazz', 'elevator to heaven']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'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'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.624725'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1949_019')

========================== row from database ==========================
                                              'id'  1443685
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1949/ch1949_019 - russ morgan & his orchestra - blue christmas 80 m (3.02).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  181
                                           'genre'  prerock-band;set-th-christmas
                                        'filesize'  1818496
                                           'mtime'  1620561230
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1949 ch1949_019 russ morgan his orchestra blue christmas 80 (3.02) prerock band;set th christmas
                                      'tag_artist'  Russ Morgan & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  Blue Christmas
                                             'bpm'  97.085
                                    'search_title'  'blue':1 'christmas':2
                                   'search_artist'  'his':3 'morgan':2 'orchestra':4 'russ':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '019':8 '02':17 '1949':6 '3':16 '302':18 '80':15 'band':20,22 'blue':13 'ch1949':7 'christmas':14 'country':4 'exotica':2 'his':11 'jazz':1 'morgan':10 'oldies':3 'orchestra':12 'prerock':19 'russ':9 'set':21,23 'th':24
                                    'search_combo'  '00oldiepop':11 '019':14 '02':23 '1949':12 '3':22 '302':24 '80':21 'band':26,28 'blue':1A,19 'ch1949':13 'christmas':2A,20 'country':10 'exotica':8 'his':5B,17 'jazz':7 'morgan':4B,16 'oldies':9 'orchestra':6B,18 'prerock':25 'russ':3B,15 'set':27,29 'th':30
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['salon', 'jazz', 'elevator to heaven']
                                        'tag_date'  1949
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561229.50475  (2021-05-09 13:53:49)
                             'size'  1818496