======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '184'
                                          'artist'  'Carmen Miranda'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Que Baixo (+ Barbosa Júnior) (choro)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', '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'  "['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1939'
                                        'comments'  ''
                                           'genre'  'prerock-samba'
                                             'bpm'  '97.459'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '97.459'
'TCON' (Content type, a.k.a. Genre)                 'prerock-samba'
'TDRC' (Recording time)                             '1939'
'TIT2' (Title/songname/content description)         'Que Baixo (+ Barbosa Júnior) (choro)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carmen Miranda'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']
'TXXX:q-bass'                                       '1'
'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'                        '+2.58 dB'
'TXXX:replaygain_track_peak'                        '0.653738'

========================== row from database ==========================
                                              'id'  1449471
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1939/Carmen Miranda - Que Baixo (+ Barbosa Júnior) (Choro) 18-4-1939.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  184
                                           'genre'  prerock-samba
                                        'filesize'  3684146
                                           'mtime'  1636916590
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1939 (Choro) 18 4 1939 prerock samba
                                      'tag_artist'  Carmen Miranda
                                     'tag_release'  None
                                       'tag_title'  Que Baixo (+ Barbosa Júnior) (choro)
                                             'bpm'  97.459
                                    'search_title'  'baixo':2 'barbosa':3 'choro':8,9 'junior':4,5,6,7 'que':1
                                   'search_artist'  'carmen':1 'miranda':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '18':9 '1939':6 '4':10 'choro':7,8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'samba':12
                                    'search_combo'  '00oldiepop':16 '18':20 '1939':17 '4':21 'baixo':2A 'barbosa':3A 'carmen':10B 'choro':8A,9A,18,19 'country':15 'exotica':13 'jazz':12 'junior':4A,5A,6A,7A 'miranda':11B 'oldies':14 'prerock':22 'que':1A 'samba':23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']
                                        'tag_date'  1939
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916590.0947764  (2021-11-14 20:03:10)
                             'size'  3684146