======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '181'
                                          'artist'  'Nancy Sit'
                                     '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-2', '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'  "['chi pop', 'all', 'hong kong', 'chinese', 'garage']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '135.5'
                                             'key'  '7B'
                                        '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))                     '135.5'
'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)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nancy Sit'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'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'                                      'HK'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['chi pop', 'all', 'hong kong', 'chinese', 'garage']
'TXXX:q-bass'                                       '2'
'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'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.430574'
'TXXX:tracknum'                                     '07'

========================== row from database ==========================
                                              'id'  1506501
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT216_UC174/07 - Nancy Sit - Shakin_ All Over (1966 HK).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  181
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  4442553
                                           'mtime'  1620385333
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT216_UC174 07 Shakin_ (1966 HK) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Nancy Sit
                                     'tag_release'  Tape No216 - UC174 - Shakin' All Over (Part I)
                                       'tag_title'  Shakin' All Over
                                             'bpm'  135.5
                                    'search_title'  'all':3 'over':4 'shakin':1,2
                                   'search_artist'  'nancy':1 'sit':2
                                  'search_release'  'all':6 'i':10,11 'no216':2 'over':7 'part':8,9 'shakin':4,5 'tape':1 'uc174':3
                                     'search_rest'  '1966':8,9 'blogspot':2 'com':3 'cover':23 'covered':25 'garage':14,16 'garagetapes':1,19,21 'garagetapesblogspotcom':4 'gr':13 'gt216':5 'hk':10,11 'or':24 'pl':18 'rock':12 'set':15,17,20,22 'shakin':7 'uc174':6
                                    'search_combo'  '1966':25,26 'all':3A,12C 'blogspot':19 'com':20 'cover':40 'covered':42 'garage':31,33 'garagetapes':18,36,38 'garagetapesblogspotcom':21 'gr':30 'gt216':22 'hk':27,28 'i':16C,17C 'nancy':5B 'no216':8C 'or':41 'over':4A,13C 'part':14C,15C 'pl':35 'rock':29 'set':32,34,37,39 'shakin':1A,2A,10C,11C,24 'sit':6B 'tape':7C 'uc174':9C,23
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-2', 'q-grit-2']
                                      'lastfmtags'  ['chi pop', 'all', 'hong kong', 'chinese', 'garage']
                                        'tag_date'  1966
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620385333.1260028  (2021-05-07 13:02:13)
                             'size'  4442553