======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '143'
                                          'artist'  'Jody Reynolds'
                                     'text_people'  ''
                                         'release'  'The Golden Age of American Roc'
                                           'title'  'Endless Sleep'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'all', 'oldies', '50s', 'rockabilly']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '108.879'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-055 POS 5'
'COMM:ID3v1 Comment:XXX'                            '58-055 POS 5'
'TALB' (Album/Movie/Show title)                     'The Golden Age of American Roc'
'TBPM' (BPM (beats per minute))                     '108.879'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Endless Sleep'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jody Reynolds'
'TRCK' (Track number/Position in set)               '13'
'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'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.07 dB'
'TXXX:replaygain_track_peak'                        '0.413396'

========================== row from database ==========================
                                              'id'  1449112
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-055 -  Jody Reynolds - Endless Sleep.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  143
                                           'genre'  prerock-unsorted
                                        'filesize'  5745960
                                           'mtime'  1621698356
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 055 prerock unsorted
                                      'tag_artist'  Jody Reynolds
                                     'tag_release'  The Golden Age of American Roc
                                       'tag_title'  Endless Sleep
                                             'bpm'  108.879
                                    'search_title'  'endless':1 'sleep':2
                                   'search_artist'  'jody':1 'reynolds':2
                                  'search_release'  'age':3 'american':5 'golden':2 'of':4 'roc':6 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':15 '1958':16 '58':17 'age':7C 'american':9C 'country':14 'endless':1A 'exotica':12 'golden':6C 'jazz':11 'jody':3B 'of':8C 'oldies':13 'prerock':18 'reynolds':4B 'roc':10C 'sleep':2A 'the':5C 'unsorted':19
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  12B
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['rock and roll', 'all', 'oldies', '50s', 'rockabilly']
                                        'tag_date'  1958
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621698356.4229846  (2021-05-22 17:45:56)
                             'size'  5745960