======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '206'
                                          'artist'  'King Midas & The Mufflers'
                                     'text_people'  ''
                                         'release'  'Tape No147 - Louie Louie (Part IV)'
                                           'title'  'Louie Louie'
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '117.9'
                                             'key'  '9B'
                                        '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 No147 - Louie Louie (Part IV)'
'TBPM' (BPM (beats per minute))                     '117.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Louie Louie'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'King Midas & The Mufflers'
'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:other'                                        '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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.861074'
'TXXX:tracknum'                                     '18'

========================== row from database ==========================
                                              'id'  506545
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT147/18 - King Midas & The Mufflers (1970 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  206
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  5033755
                                           'mtime'  1620384757
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT147 18 (1970 US) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  King Midas & The Mufflers
                                     'tag_release'  Tape No147 - Louie Louie (Part IV)
                                       'tag_title'  Louie Louie
                                             'bpm'  117.9
                                    'search_title'  'louie':1
                                   'search_artist'  'king':1 'midas':2 'mufflers':4 'the':3
                                  'search_release'  'iv':6,7 'louie':3 'no147':2 'part':4,5 'tape':1
                                     'search_rest'  '18':6 '1970':7,8 'blogspot':2 'com':3 'cover':22 'covered':24 'garage':13,15 'garagetapes':1,18,20 'garagetapesblogspotcom':4 'gr':12 'gt147':5 'or':23 'pl':17 'rock':11 'set':14,16,19,21 'us':9,10
                                    'search_combo'  '18':18 '1970':19,20 'blogspot':14 'com':15 'cover':34 'covered':36 'garage':25,27 'garagetapes':13,30,32 'garagetapesblogspotcom':16 'gr':24 'gt147':17 'iv':11C,12C 'king':2B 'louie':1A,8C 'midas':3B 'mufflers':5B 'no147':7C 'or':35 'part':9C,10C 'pl':29 'rock':23 'set':26,28,31,33 'tape':6C 'the':4B 'us':21,22
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  9B
                                           '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-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384756.9836397  (2021-05-07 12:52:36)
                             'size'  5033755