======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '138'
                                          'artist'  'Sophie Tucker'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "Don't Put A Tax On The Beautiful Girls"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', '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'  "['20s', '30s', '1920s', 'jazz', 'female vocalists', 'female vocalist']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '141.118'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         "Don't Put A Tax On The Beautiful Girls"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sophie Tucker'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['20s', '30s', '1920s', 'jazz', 'female vocalists', 'female vocalist']
'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'                        '+2.02 dB'
'TXXX:replaygain_track_peak'                        '0.396851'

========================== row from database ==========================
                                              'id'  1516888
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1919/Sophie Tucker - Don_t Put A Tax On The Beautiful Girls -10-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  138
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2766516
                                           'mtime'  1620524116
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1919 Don_t 10 1919 prerock jb jazz vocal
                                      'tag_artist'  Sophie Tucker
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Don't Put A Tax On The Beautiful Girls
                                             'bpm'  141.118
                                    'search_title'  'a':5 'beautiful':9 'don':1 'dont':3 'girls':10 'on':7 'put':4 't':2 'tax':6 'the':8
                                   'search_artist'  'sophie':1 'tucker':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1919':6 'country':4 'don':7 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 't':8 'vocal':11
                                    'search_combo'  '00oldiepop':22 '1919':23 'a':5A 'album':14C 'beautiful':9A 'country':21 'don':1A,24 'dont':3A 'exotica':19 'girls':10A 'jazz':18 'jb':27 'non':13C 'nonalbum':15C 'oldies':20 'on':7A 'prerock':26 'put':4A 'sophie':11B 't':2A,25 'tax':6A 'the':8A 'tracks':16C,17C 'tucker':12B 'vocal':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', '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'  ['20s', '30s', '1920s', 'jazz', 'female vocalists', 'female vocalist']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524115.6366668  (2021-05-09 03:35:15)
                             'size'  2766516