======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'Billy Scott'
                                     'text_people'  ''
                                         'release'  'All The Hits By All The Stars'
                                           'title'  "You're The Greatest"
                                           '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-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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '127.766'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-411 POS 73'
'COMM:ID3v1 Comment:XXX'                            '58-411 POS 73'
'TALB' (Album/Movie/Show title)                     'All The Hits By All The Stars'
'TBPM' (BPM (beats per minute))                     '127.766'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         "You're The Greatest"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Scott'
'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:q-bass'                                       '1'
'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'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.420984'

========================== row from database ==========================
                                              'id'  1499076
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-411 - Billy Scott - You_re The Greatest.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  prerock-unsorted
                                        'filesize'  5763403
                                           'mtime'  1621698378
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 411 You_re prerock unsorted
                                      'tag_artist'  Billy Scott
                                     'tag_release'  All The Hits By All The Stars
                                       'tag_title'  You're The Greatest
                                             'bpm'  127.766
                                    'search_title'  'greatest':5 're':2 'the':4 'you':1 'youre':3
                                   'search_artist'  'billy':1 'scott':2
                                  'search_release'  'all':1 'by':4 'hits':3 'stars':5 'the':2
                                     'search_rest'  '00oldiepop':5 '1958':6 '411':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 're':10 'unsorted':12 'you':9
                                    'search_combo'  '00oldiepop':17 '1958':18 '411':20 '58':19 'all':8C 'billy':6B 'by':11C 'country':16 'exotica':14 'greatest':5A 'hits':10C 'jazz':13 'oldies':15 'prerock':23 're':2A,22 'scott':7B 'stars':12C 'the':4A,9C 'unsorted':24 'you':1A,21 'youre':3A
                                    '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698378.2415154  (2021-05-22 17:46:18)
                             'size'  5763403