======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '156'
                                          'artist'  'Les Shazams'
                                     'text_people'  ''
                                         'release'  'Tape No203 - Play With Fire (Covering The Rolling Stones, Part IV)'
                                           'title'  'Satisfaction'
                                           '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-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['surf', 'beat', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '132.5'
                                             'key'  '12B'
                                        '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 No203 - Play With Fire (Covering The Rolling Stones, Part IV)'
'TBPM' (BPM (beats per minute))                     '132.5'
'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)         'Satisfaction'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Les Shazams'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01'
'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'                                      'FR'
'TXXX:discogstags'                                  ['surf', 'beat', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+19.57 dB'
'TXXX:replaygain_track_peak'                        '0.062292'
'TXXX:tracknum'                                     '01'

========================== row from database ==========================
                                              'id'  505870
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT203/01 - Les Shazams - Satisfaction (196 FR).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  156
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3830659
                                           'mtime'  1620385225
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT203 01 (196 FR) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  Les Shazams
                                     'tag_release'  Tape No203 - Play With Fire (Covering The Rolling Stones, Part IV)
                                       'tag_title'  Satisfaction
                                             'bpm'  132.5
                                    'search_title'  'satisfaction':1
                                   'search_artist'  'les':1 'shazams':2
                                  'search_release'  'covering':6,7 'fire':5 'iv':13,14 'no203':2 'part':12 'play':3 'rolling':9 'stones':10,11 'tape':1 'the':8 'with':4
                                     'search_rest'  '196':6,7 'blogspot':2 'com':3 'cover':21 'covered':23 'fr':8,9 'garage':12,14 'garagetapes':1,17,19 'garagetapesblogspotcom':4 'gr':11 'gt203':5 'or':22 'pl':16 'rock':10 'set':13,15,18,20
                                    'search_combo'  '196':23,24 'blogspot':19 'com':20 'cover':38 'covered':40 'covering':9C,10C 'fire':8C 'fr':25,26 'garage':29,31 'garagetapes':18,34,36 'garagetapesblogspotcom':21 'gr':28 'gt203':22 'iv':16C,17C 'les':2B 'no203':5C 'or':39 'part':15C 'pl':33 'play':6C 'rock':27 'rolling':12C 'satisfaction':1A 'set':30,32,35,37 'shazams':3B 'stones':13C,14C 'tape':4C 'the':11C 'with':7C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  12B
                                           '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-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  ['surf', 'beat', 'rock']

============================== file details ==============================
                                           'mtime'  1620385225.3763952  (2021-05-07 13:00:25)
                             'size'  3830659