======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '152'
                                          'artist'  'Charly & his Explorers'
                                     '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-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '130.9'
                                             'key'  '12B'
                                        '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))                     '130.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "Shakin' All Over"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Charly & his Explorers'
'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'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'DE'
'TXXX:q-bass'                                       '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.84 dB'
'TXXX:replaygain_track_peak'                        '0.564650'
'TXXX:tracknum'                                     '02'

========================== row from database ==========================
                                              'id'  1511902
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT216_UC174/02 - Charly & his Explorers - Shakin_ All Over (1965 DE).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  152
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3745397
                                           'mtime'  1620385333
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT216_UC174 02 Shakin_ (1965 DE) rock gr garage;set garagetapes;set cover covered
                                      'tag_artist'  Charly & his Explorers
                                     'tag_release'  Tape No216 - UC174 - Shakin' All Over (Part I)
                                       'tag_title'  Shakin' All Over
                                             'bpm'  130.9
                                    'search_title'  'all':3 'over':4 'shakin':1,2
                                   'search_artist'  'charly':1 'explorers':3 'his':2
                                  'search_release'  'all':6 'i':10,11 'no216':2 'over':7 'part':8,9 'shakin':4,5 'tape':1 'uc174':3
                                     'search_rest'  '1965':8,9 'blogspot':2 'com':3 'cover':22 'covered':23 'de':10,11 'garage':14,16 'garagetapes':1,18,20 'garagetapesblogspotcom':4 'gr':13 'gt216':5 'rock':12 'set':15,17,19,21 'shakin':7 'uc174':6
                                    'search_combo'  '1965':26,27 'all':3A,13C 'blogspot':20 'charly':5B 'com':21 'cover':40 'covered':41 'de':28,29 'explorers':7B 'garage':32,34 'garagetapes':19,36,38 'garagetapesblogspotcom':22 'gr':31 'gt216':23 'his':6B 'i':17C,18C 'no216':9C 'over':4A,14C 'part':15C,16C 'rock':30 'set':33,35,37,39 'shakin':1A,2A,11C,12C,25 'tape':8C 'uc174':10C,24
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  12B
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385332.7035596  (2021-05-07 13:02:12)
                             'size'  3745397