======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '144'
                                          'artist'  'Dinning Sisters'
                                     'text_people'  ''
                                         'release'  'Capitol 01429'
                                           'title'  'Kissing Song'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', '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'  "['female vocalists', 'female', 'lovely', '50s', 'salon']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1951'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '136.8'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Capitol 01429'
'TBPM' (BPM (beats per minute))                     '136.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1951'
'TIT2' (Title/songname/content description)         'Kissing Song'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dinning Sisters'
'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 vocalists', 'female', 'lovely', '50s', 'salon']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'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'                        '+3.00 dB'
'TXXX:replaygain_track_peak'                        '0.547166'

========================== row from database ==========================
                                              'id'  1450987
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1951/Dinning Sisters - Kissing Song 1951.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  144
                                           'genre'  prerock-vocal
                                        'filesize'  2897726
                                           'mtime'  1621853302
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1951 1951 prerock vocal
                                      'tag_artist'  Dinning Sisters
                                     'tag_release'  Capitol 01429
                                       'tag_title'  Kissing Song
                                             'bpm'  136.8
                                    'search_title'  'kissing':1 'song':2
                                   'search_artist'  'dinning':1 'sisters':2
                                  'search_release'  '01429':2 'capitol':1
                                     'search_rest'  '00oldiepop':5 '1951':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':11 '01429':6C '1951':12 'capitol':5C 'country':10 'dinning':3B 'exotica':8 'jazz':7 'kissing':1A 'oldies':9 'prerock':13 'sisters':4B 'song':2A 'vocal':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           '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-4', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'female', 'lovely', '50s', 'salon']
                                        'tag_date'  1951
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853302.2229338  (2021-05-24 12:48:22)
                             'size'  2897726