======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Fats Domino'
                                     'text_people'  ''
                                         'release'  'They Call Me the Fat Man: The Legendary Imperial Recordings (3 of 4)'
                                           'title'  'Margie '
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '89.651'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-308 POS 51'
'COMM:ID3v1 Comment:XXX'                            '59-308 POS 51'
'TALB' (Album/Movie/Show title)                     'They Call Me the Fat Man: The Legendary Imperial Recordings (3 of 4)'
'TBPM' (BPM (beats per minute))                     '89.651'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Margie '
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '137377'
'TPE1' (Lead performer(s)/Soloist(s))               'Fats Domino'
'TRCK' (Track number/Position in set)               '11'
'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'                                   ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.628731'

========================== row from database ==========================
                                              'id'  1449950
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-308 - Fats Domino - Margie.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  5497166
                                           'mtime'  1622659483
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 308 rock pop early rocknroll
                                      'tag_artist'  Fats Domino
                                     'tag_release'  They Call Me the Fat Man: The Legendary Imperial Recordings (3 of 4)
                                       'tag_title'  Margie 
                                             'bpm'  89.651
                                    'search_title'  'margie':1
                                   'search_artist'  'domino':2 'fats':1
                                  'search_release'  '3':11,12 '4':14,15 'call':2 'fat':5 'imperial':9 'legendary':8 'man':6,7 'me':3 'of':13 'recordings':10 'the':4 'they':1
                                     'search_rest'  '00oldiepop':5 '1959':6 '308':8 '59':7 'country':4 'early':11 'exotica':2 'jazz':1 'oldies':3 'pop':10 'rock':9 'rocknroll':12
                                    'search_combo'  '00oldiepop':23 '1959':24 '3':14C,15C '308':26 '4':17C,18C '59':25 'call':5C 'country':22 'domino':3B 'early':29 'exotica':20 'fat':8C 'fats':2B 'imperial':12C 'jazz':19 'legendary':11C 'man':9C,10C 'margie':1A 'me':6C 'of':16C 'oldies':21 'pop':28 'recordings':13C 'rock':27 'rocknroll':30 'the':7C 'they':4C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659482.8535345  (2021-06-02 20:44:42)
                             'size'  5497166