======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Gale Storm'
                                     'text_people'  ''
                                         'release'  "The Golden Age of Rock 'n' Roll - 1956 - Volume 3 of 3"
                                           'title'  'Teen Age Prayer'
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalist', 'female vocalists', '50s', 'oldies', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '043'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '140.823'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "The Golden Age of Rock 'n' Roll - 1956 - Volume 3 of 3"
'TBPM' (BPM (beats per minute))                     '140.823'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Teen Age Prayer'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gale Storm'
'TRCK' (Track number/Position in set)               '043'
'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'                                   ['female vocalist', 'female vocalists', '50s', 'oldies', 'easy listening']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.56 dB'
'TXXX:replaygain_track_peak'                        '0.403171'

========================== row from database ==========================
                                              'id'  1442239
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-043 - Gale Storm - Teen Age Prayer.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  prerock-unsorted
                                        'filesize'  5519232
                                           'mtime'  1621698257
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 043 prerock unsorted
                                      'tag_artist'  Gale Storm
                                     'tag_release'  The Golden Age of Rock 'n' Roll - 1956 - Volume 3 of 3
                                       'tag_title'  Teen Age Prayer
                                             'bpm'  140.823
                                    'search_title'  'age':2 'prayer':3 'teen':1
                                   'search_artist'  'gale':1 'storm':2
                                  'search_release'  '1956':9 '3':11 'age':3 'golden':2 'n':6,7 'of':4 'rock':5 'roll':8 'the':1 'volume':10
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'unsorted':7
                                    'search_combo'  '00oldiepop':21 '1956':14C '3':16C 'age':2A,8C 'country':20 'exotica':18 'gale':4B 'golden':7C 'jazz':17 'n':11C,12C 'of':9C 'oldies':19 'prayer':3A 'prerock':22 'rock':10C 'roll':13C 'storm':5B 'teen':1A 'the':6C 'unsorted':23 'volume':15C
                                    'tag_tracknum'  43
                                      'num_images'  0
                                             'key'  8B
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['female vocalist', 'female vocalists', '50s', 'oldies', 'easy listening']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698257.2920237  (2021-05-22 17:44:17)
                             'size'  5519232