======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '165'
                                          'artist'  'Bing Crosby'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'How Lovely Is Christmas'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', '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'  "['crooners', 'jazz', 'christmas', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;set-th-christmas'
                                             'bpm'  '145.895'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['Debuted 12/21/1957 and peaked at #97 on the Hot 100 Chart. Source: Pop '
 'Annual. Label/Number: Kapp. Date Peaked: 12/21/1957. \r\n',
 'Debuted 1957 and peaked at # on the Hot 100 Chart. Label/Number: Kapp 196. '
 'Hot 100 & Pop Charts (1955-2004)\r\n']
'COMM:ID3v1 Comment:XXX'                            'Debuted 12/21/1957 and peaked'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'set-th-christmas']
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'How Lovely Is Christmas'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bing Crosby'
'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:lastfmtags'                                   ['crooners', 'jazz', 'christmas', 'oldies', 'swing']
'TXXX:q-bass'                                       '1'
'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'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.454662'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1957_012')

========================== row from database ==========================
                                              'id'  1428031
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/ch1957_012 - bing crosby - how lovely is christmas 96 m (2.45).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  165
                                           'genre'  prerock-vocal;set-th-christmas
                                        'filesize'  1986560
                                           'mtime'  1621625742
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 ch1957_012 bing crosby how lovely christmas 96 (2.45) prerock vocal;set th christmas
                                      'tag_artist'  Bing Crosby
                                     'tag_release'  None
                                       'tag_title'  How Lovely Is Christmas
                                             'bpm'  145.895
                                    'search_title'  'christmas':4 'how':1 'is':3 'lovely':2
                                   'search_artist'  'bing':1 'crosby':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '012':8 '1957':6 '2':15 '245':17 '45':16 '96':14 'bing':9 'ch1957':7 'christmas':13 'country':4 'crosby':10 'exotica':2 'how':11 'jazz':1 'lovely':12 'oldies':3 'prerock':18 'set':20,22 'th':23 'vocal':19,21
                                    'search_combo'  '00oldiepop':11 '012':14 '1957':12 '2':21 '245':23 '45':22 '96':20 'bing':5B,15 'ch1957':13 'christmas':4A,19 'country':10 'crosby':6B,16 'exotica':8 'how':1A,17 'is':3A 'jazz':7 'lovely':2A,18 'oldies':9 'prerock':24 'set':26,28 'th':29 'vocal':25,27
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['crooners', 'jazz', 'christmas', 'oldies', 'swing']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625741.6591604  (2021-05-21 21:35:41)
                             'size'  1986560