======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '112'
                                          'artist'  'Jody Reynolds'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Fire Of Love'
                                           'quals'  ("['Q-HAP-3', '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-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'all', 'oldies', '50s', 'rockabilly']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  '17'
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '112.570'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-379 POS 66'
'COMM:ID3v1 Comment:XXX'                            '58-379 POS 66'
'TBPM' (BPM (beats per minute))                     '112.570'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Sicherer Modus)'
'TIT2' (Title/songname/content description)         'Fire Of Love'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jody Reynolds'
'TRCK' (Track number/Position in set)               '02/17'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['rock and roll', 'all', 'oldies', '50s', 'rockabilly']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.500928'

========================== row from database ==========================
                                              'id'  1521488
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-379 - Jody Reynolds - You_re A Sweetheart.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  112
                                           'genre'  prerock-unsorted
                                        'filesize'  4502540
                                           'mtime'  1621698378
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 379 You_re A Sweetheart prerock unsorted
                                      'tag_artist'  Jody Reynolds
                                     'tag_release'  None
                                       'tag_title'  Fire Of Love
                                             'bpm'  112.57
                                    'search_title'  'fire':1 'love':3 'of':2
                                   'search_artist'  'jody':1 'reynolds':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1958':6 '379':8 '58':7 'a':11 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':13 're':10 'sweetheart':12 'unsorted':14 'you':9
                                    'search_combo'  '00oldiepop':10 '1958':11 '379':13 '58':12 'a':16 'country':9 'exotica':7 'fire':1A 'jazz':6 'jody':4B 'love':3A 'of':2A 'oldies':8 'prerock':18 're':15 'reynolds':5B 'sweetheart':17 'unsorted':19 'you':14
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12B
                                           '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['rock and roll', 'all', 'oldies', '50s', 'rockabilly']
                                        'tag_date'  1958
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621698378.1823463  (2021-05-22 17:46:18)
                             'size'  4502540