======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '152'
                                          'artist'  'Mae West With Somebodys'
                                     'text_people'  ''
                                         'release'  "Tape No216 - UC174 - Shakin' All Over (Part I)"
                                           'title'  "Shakin' All Over"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '135.0'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.gr/http://michaelvee.livejournal.com/'
'TALB' (Album/Movie/Show title)                     "Tape No216 - UC174 - Shakin' All Over (Part I)"
'TBPM' (BPM (beats per minute))                     '135.0'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         "Shakin' All Over"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mae West With Somebodys'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '18'
'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'                                      'US'
'TXXX:q-bass'                                       '3'
'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'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.488953'
'TXXX:tracknum'                                     '18'

========================== row from database ==========================
                                              'id'  1515270
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT216_UC174/18 - Mae West With Somebodys - Shakin_ All Over (1966 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  152
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3738422
                                           'mtime'  1620385339
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT216_UC174 18 Shakin_ (1966 US) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Mae West With Somebodys
                                     'tag_release'  Tape No216 - UC174 - Shakin' All Over (Part I)
                                       'tag_title'  Shakin' All Over
                                             'bpm'  135.0
                                    'search_title'  'all':3 'over':4 'shakin':1,2
                                   'search_artist'  'mae':1 'somebodys':4 'west':2 'with':3
                                  'search_release'  'all':6 'i':10,11 'no216':2 'over':7 'part':8,9 'shakin':4,5 'tape':1 'uc174':3
                                     'search_rest'  '18':7 '1966':9,10 'blogspot':2 'com':3 'cover':24 'covered':26 'garage':15,17 'garagetapes':1,20,22 'garagetapesblogspotcom':4 'gr':14 'gt216':5 'or':25 'pl':19 'rock':13 'set':16,18,21,23 'shakin':8 'uc174':6 'us':11,12
                                    'search_combo'  '18':26 '1966':28,29 'all':3A,14C 'blogspot':21 'com':22 'cover':43 'covered':45 'garage':34,36 'garagetapes':20,39,41 'garagetapesblogspotcom':23 'gr':33 'gt216':24 'i':18C,19C 'mae':5B 'no216':10C 'or':44 'over':4A,15C 'part':16C,17C 'pl':38 'rock':32 'set':35,37,40,42 'shakin':1A,2A,12C,13C,27 'somebodys':8B 'tape':9C 'uc174':11C,25 'us':30,31 'west':6B 'with':7B
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  4A
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385338.6552577  (2021-05-07 13:02:18)
                             'size'  3738422