======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '208'
                                          'artist'  'Lydia E Gli Hellua Xenium'
                                     'text_people'  ''
                                         'release'  'Tape No081 - Real Girls In The Garage Land (Part XXI)'
                                           'title'  'Guai A Voi'
                                           '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['prog rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '136.5'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     'Tape No081 - Real Girls In The Garage Land (Part XXI)'
'TBPM' (BPM (beats per minute))                     '136.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Guai A Voi'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lydia E Gli Hellua Xenium'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '04'
'TXXX:COUNTRY'                                      'IT'
'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:discogstags'                                  ['prog rock', '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'                                     '3'
'TXXX:replaygain_track_gain'                        '+24.14 dB'
'TXXX:replaygain_track_peak'                        '0.034818'
'TXXX:tracknum'                                     '04'

========================== row from database ==========================
                                              'id'  499848
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT081/04 - Lydia E Gli Hellua Xenium - Guai A Voi (1973 IT).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  208
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  5094309
                                           'mtime'  1620383618
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT081 04 (1973 IT) rock gr garage;set pl garagetapes
                                      'tag_artist'  Lydia E Gli Hellua Xenium
                                     'tag_release'  Tape No081 - Real Girls In The Garage Land (Part XXI)
                                       'tag_title'  Guai A Voi
                                             'bpm'  136.5
                                    'search_title'  'a':2 'guai':1 'voi':3
                                   'search_artist'  'e':2 'gli':3 'hellua':4 'lydia':1 'xenium':5
                                  'search_release'  'garage':7 'girls':4 'in':5 'land':8 'no081':2 'part':9,10 'real':3 'tape':1 'the':6 'xxi':11,12
                                     'search_rest'  '1973':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt081':5 'it':8,9 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1973':26,27 'a':2A 'blogspot':22 'com':23 'e':5B 'garage':15C,32,34 'garagetapes':21,37 'garagetapesblogspotcom':24 'girls':12C 'gli':6B 'gr':31 'gt081':25 'guai':1A 'hellua':7B 'in':13C 'it':28,29 'land':16C 'lydia':4B 'no081':10C 'part':17C,18C 'pl':36 'real':11C 'rock':30 'set':33,35 'tape':9C 'the':14C 'voi':3A 'xenium':8B 'xxi':19C,20C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1973
                                     'discogstags'  ['prog rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620383617.9495082  (2021-05-07 12:33:37)
                             'size'  5094309