======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '192'
                                          'artist'  'Charles Trenet'
                                     'text_people'  ''
                                         'release'  'Columbia DCF  14 (1947)'
                                           'title'  'Que Reste T Il Ne Nos Amours'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', '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'  "['chanson', 'jazz', 'chanson francaise', 'french', 'francais']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-french'
                                             'bpm'  '115.987'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia DCF  14 (1947)'
'TBPM' (BPM (beats per minute))                     '115.987'
'TCON' (Content type, a.k.a. Genre)                 'prerock-french'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'Que Reste T Il Ne Nos Amours'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Charles Trenet'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['chanson', 'jazz', 'chanson francaise', 'french', 'francais']
'TXXX:q-bass'                                       '2'
'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'                        '+2.80 dB'
'TXXX:replaygain_track_peak'                        '0.939076'

========================== row from database ==========================
                                              'id'  1433864
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/Charles Trenet - Que Reste T Il Ne Nos Amours 1943.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  192
                                           'genre'  prerock-french
                                        'filesize'  3858432
                                           'mtime'  1621627560
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 1943 prerock french
                                      'tag_artist'  Charles Trenet
                                     'tag_release'  Columbia DCF  14 (1947)
                                       'tag_title'  Que Reste T Il Ne Nos Amours
                                             'bpm'  115.987
                                    'search_title'  'amours':7 'il':4 'ne':5 'nos':6 'que':1 'reste':2 't':3
                                   'search_artist'  'charles':1 'trenet':2
                                  'search_release'  '1947':3,4 'columbia':1 'dcf':2
                                     'search_rest'  '00oldiepop':5 '1943':6 'country':4 'exotica':2 'french':8 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':18 '1943':19 '1947':12C,13C 'amours':7A 'charles':8B 'columbia':10C 'country':17 'dcf':11C 'exotica':15 'french':21 'il':4A 'jazz':14 'ne':5A 'nos':6A 'oldies':16 'prerock':20 'que':1A 'reste':2A 't':3A 'trenet':9B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', '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-2', 'q-grit-1']
                                      'lastfmtags'  ['chanson', 'jazz', 'chanson francaise', 'french', 'francais']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627559.7833462  (2021-05-21 22:05:59)
                             'size'  3858432