======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '185'
                                          'artist'  'Los Cuernos'
                                     'text_people'  ''
                                         'release'  'Tape No171 - Land Of 1000 Dances'
                                           'title'  'El Pais De Las Mil Danzas'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spain']"
                                     'discogstags'  "['funk / soul', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '27'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '92.1'
                                             'key'  '6A'
                                        '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 No171 - Land Of 1000 Dances'
'TBPM' (BPM (beats per minute))                     '92.1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'El Pais De Las Mil Danzas'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Cuernos'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '27'
'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'                                      'ES'
'TXXX:discogstags'                                  ['funk / soul', 'pop', 'rock']
'TXXX:lastfmtags'                                   'spain'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+24.43 dB'
'TXXX:replaygain_track_peak'                        '0.039369'
'TXXX:tracknum'                                     '27'

========================== row from database ==========================
                                              'id'  500787
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT171/27 - Los Cuernos - El Pais De Las Mil Danzas (1967 ES).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  185
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4557560
                                           'mtime'  1620384961
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT171 27 (1967 ES) rock gr garage;set pl garagetapes
                                      'tag_artist'  Los Cuernos
                                     'tag_release'  Tape No171 - Land Of 1000 Dances
                                       'tag_title'  El Pais De Las Mil Danzas
                                             'bpm'  92.1
                                    'search_title'  'danzas':6 'de':3 'el':1 'las':4 'mil':5 'pais':2
                                   'search_artist'  'cuernos':2 'los':1
                                  'search_release'  '1000':5 'dances':6 'land':3 'no171':2 'of':4 'tape':1
                                     'search_rest'  '1967':7,8 '27':6 'blogspot':2 'com':3 'es':9,10 'garage':13,15 'garagetapes':1,18 'garagetapesblogspotcom':4 'gr':12 'gt171':5 'pl':17 'rock':11 'set':14,16
                                    'search_combo'  '1000':13C '1967':21,22 '27':20 'blogspot':16 'com':17 'cuernos':8B 'dances':14C 'danzas':6A 'de':3A 'el':1A 'es':23,24 'garage':27,29 'garagetapes':15,32 'garagetapesblogspotcom':18 'gr':26 'gt171':19 'land':11C 'las':4A 'los':7B 'mil':5A 'no171':10C 'of':12C 'pais':2A 'pl':31 'rock':25 'set':28,30 'tape':9C
                                    'tag_tracknum'  27
                                      'num_images'  1
                                             'key'  6A
                                           '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-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spain']
                                        'tag_date'  1967
                                     'discogstags'  ['funk / soul', 'pop', 'rock']

============================== file details ==============================
                                           'mtime'  1620384961.0249515  (2021-05-07 12:56:01)
                             'size'  4557560