======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Carlos Gardel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Naipe Marcado'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['tango argentino', 'argentina', 'latin', 'oldies', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-tango'
                                             'bpm'  '93.6'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '93.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-tango'
'TDRC' (Recording time)                             '1933-05-11'
'TIT2' (Title/songname/content description)         'Naipe Marcado'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '173000'
'TPE1' (Lead performer(s)/Soloist(s))               'Carlos Gardel'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['tango argentino', 'argentina', 'latin', 'oldies', 'tango']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+3.34 dB'
'TXXX:replaygain_track_peak'                        '0.516848'

========================== row from database ==========================
                                              'id'  1473608
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Carlos Gardel - Naipe Marcado 11-5-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  prerock-tango
                                        'filesize'  3543698
                                           'mtime'  1642095586
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 11 5 1933 prerock tango
                                      'tag_artist'  Carlos Gardel
                                     'tag_release'  None
                                       'tag_title'  Naipe Marcado
                                             'bpm'  93.6
                                    'search_title'  'marcado':2 'naipe':1
                                   'search_artist'  'carlos':1 'gardel':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1933':6 '5':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'tango':9
                                    'search_combo'  '00oldiepop':9 '1933':10 '5':11 'carlos':3B 'country':8 'exotica':6 'gardel':4B 'jazz':5 'marcado':2A 'naipe':1A 'oldies':7 'prerock':12 'tango':13
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['tango argentino', 'argentina', 'latin', 'oldies', 'tango']
                                        'tag_date'  1933
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642095585.9905496  (2022-01-13 18:39:45)
                             'size'  3543698