======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '151'
                                          'artist'  'Los Solitarios'
                                     'text_people'  ''
                                         'release'  'Tape No152 - Going Backwards'
                                           'title'  'Extrano Y Solitario'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['los muecas', 'marco antonio solis', 'los angeles negros', 'los bukis', 'es "
 "uno de los buenos grupos i no pasa de epoca']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '145.6'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.gr/'
'TALB' (Album/Movie/Show title)                     'Tape No152 - Going Backwards'
'TBPM' (BPM (beats per minute))                     '145.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Extrano Y Solitario'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Solitarios'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'MX'
'TXXX:lastfmtags'                                   ['los muecas',
 'marco antonio solis',
 'los angeles negros',
 'los bukis',
 'es uno de los buenos grupos i no pasa de epoca']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+23.68 dB'
'TXXX:replaygain_track_peak'                        '0.023478'
'TXXX:tracknum'                                     '06'

========================== row from database ==========================
                                              'id'  502748
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT152/06 - Los Solitarios - Extrano Y Solitario (1972 MX).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  151
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3679774
                                           'mtime'  1620384798
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT152 06 (1972 MX) rock gr garage;set pl garagetapes
                                      'tag_artist'  Los Solitarios
                                     'tag_release'  Tape No152 - Going Backwards
                                       'tag_title'  Extrano Y Solitario
                                             'bpm'  145.6
                                    'search_title'  'extrano':1 'solitario':3 'y':2
                                   'search_artist'  'los':1 'solitarios':2
                                  'search_release'  'backwards':4 'going':3 'no152':2 'tape':1
                                     'search_rest'  '1972':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt152':5 'mx':8,9 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1972':15,16 'backwards':9C 'blogspot':11 'com':12 'extrano':1A 'garage':21,23 'garagetapes':10,26 'garagetapesblogspotcom':13 'going':8C 'gr':20 'gt152':14 'los':4B 'mx':17,18 'no152':7C 'pl':25 'rock':19 'set':22,24 'solitario':3A 'solitarios':5B 'tape':6C 'y':2A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['los muecas', 'marco antonio solis', 'los angeles negros', 'los bukis', 'es uno de los buenos grupos i no pasa de epoca']
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384798.0568075  (2021-05-07 12:53:18)
                             'size'  3679774