======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '192'
                                          'artist'  'Nat "King" Cole'
                                     'text_people'  ''
                                         'release'  'From CD - orig. Capitol 2955'
                                           'title'  '"Christmas Song (Merry Christmas to You), The"'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'swing', 'oldies', 'blues', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '66'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'set-th-christmas;prerock-jb-jazz-unsorted'
                                             'bpm'  '135.819'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('Debuted 1954 and peaked at # on Various Charts. Label/Number: Capitol F2955. '
 'Pop Charts 1920-1954\r\n')
'COMM:ID3v1 Comment:XXX'                            'Debuted 1954 and peaked at #'
'TALB' (Album/Movie/Show title)                     'From CD - orig. Capitol 2955'
'TBPM' (BPM (beats per minute))                     '135.819'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-christmas', 'prerock-jb-jazz-unsorted']
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         '"Christmas Song (Merry Christmas to You), The"'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nat "King" Cole'
'TRCK' (Track number/Position in set)               '66'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'swing', 'oldies', 'blues', 'christmas']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.20 dB'
'TXXX:replaygain_track_peak'                        '0.787761'
'UFID:'                                             UFID(owner='', data=b'XL\x00 CH1954_009')

========================== row from database ==========================
                                              'id'  1498894
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/ch1954_009 - __nat ____king____ cole__ - __christmas song (merry christmas to you), the__ 80 m (3.13).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  192
                                           'genre'  set-th-christmas;prerock-jb-jazz-unsorted
                                        'filesize'  1930444
                                           'mtime'  1620527710
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 ch1954_009 __nat ____king____ cole__ __christmas song (merry christmas you), the__ 80 (3.13) set th christmas;prerock jb jazz unsorted
                                      'tag_artist'  Nat "King" Cole
                                     'tag_release'  From CD - orig. Capitol 2955
                                       'tag_title'  "Christmas Song (Merry Christmas to You), The"
                                             'bpm'  135.819
                                    'search_title'  'christmas':1,5 'merry':3,4 'song':2 'the':9 'to':6 'you':7,8
                                   'search_artist'  'cole':3 'king':2 'nat':1
                                  'search_release'  '2955':6 'capitol':5 'cd':2 'from':1 'orig':3,4
                                     'search_rest'  '009':8 '00oldiepop':5 '13':22 '1954':6 '3':21 '313':23 '80':20 'ch1954':7 'christmas':12,16,26,28 'cole':11 'country':4 'exotica':2 'jazz':1 'jb':30 'king':10 'merry':14,15 'nat':9 'oldies':3 'prerock':27,29 'set':24 'song':13 'th':25 'the':19 'unsorted':31 'you':17,18
                                    'search_combo'  '009':26 '00oldiepop':23 '13':40 '1954':24 '2955':18C '3':39 '313':41 '80':38 'capitol':17C 'cd':14C 'ch1954':25 'christmas':1A,5A,30,34,44,46 'cole':12B,29 'country':22 'exotica':20 'from':13C 'jazz':19 'jb':48 'king':11B,28 'merry':3A,4A,32,33 'nat':10B,27 'oldies':21 'orig':15C,16C 'prerock':45,47 'set':42 'song':2A,31 'th':43 'the':9A,37 'to':6A 'unsorted':49 'you':7A,8A,35,36
                                    'tag_tracknum'  66
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'swing', 'oldies', 'blues', 'christmas']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527709.780825  (2021-05-09 04:35:09)
                             'size'  1930444