======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '155'
                                          'artist'  'I Cuccioli'
                                     'text_people'  ''
                                         'release'  'Tape No158 - Covering The Who (Part III)'
                                           'title'  'Tu Non Sai'
                                           'quals'  ("['Q-LOCALNESS-2', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['italian beat', '60s', 'all', 'beat', 'italian beat rock']"
                                     'discogstags'  "['beat', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '145.6'
                                             'key'  '10A'
                                        '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 No158 - Covering The Who (Part III)'
'TBPM' (BPM (beats per minute))                     '145.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Tu Non Sai'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'I Cuccioli'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'IT'
'TXXX:discogstags'                                  ['beat', 'rock']
'TXXX:lastfmtags'                                   ['italian beat', '60s', 'all', 'beat', 'italian beat rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+23.30 dB'
'TXXX:replaygain_track_peak'                        '0.029841'
'TXXX:tracknum'                                     '02'

========================== row from database ==========================
                                              'id'  505932
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT158/02 - I Cuccioli - Tu Non Sai (1967 IT).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  155
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3804363
                                           'mtime'  1620384853
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT158 02 (1967 IT) rock gr garage;set pl garagetapes
                                      'tag_artist'  I Cuccioli
                                     'tag_release'  Tape No158 - Covering The Who (Part III)
                                       'tag_title'  Tu Non Sai
                                             'bpm'  145.6
                                    'search_title'  'non':2 'sai':3 'tu':1
                                   'search_artist'  'cuccioli':2 'i':1
                                  'search_release'  'covering':3 'iii':8,9 'no158':2 'part':6,7 'tape':1 'the':4 'who':5
                                     'search_rest'  '1967':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt158':5 'it':8,9 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1967':20,21 'blogspot':16 'com':17 'covering':8C 'cuccioli':5B 'garage':26,28 'garagetapes':15,31 'garagetapesblogspotcom':18 'gr':25 'gt158':19 'i':4B 'iii':13C,14C 'it':22,23 'no158':7C 'non':2A 'part':11C,12C 'pl':30 'rock':24 'sai':3A 'set':27,29 'tape':6C 'the':9C 'tu':1A 'who':10C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['italian beat', '60s', 'all', 'beat', 'italian beat rock']
                                        'tag_date'  1967
                                     'discogstags'  ['beat', 'rock']

============================== file details ==============================
                                           'mtime'  1620384852.6841547  (2021-05-07 12:54:12)
                             'size'  3804363