======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '140'
                                          'artist'  'The Chan-Dells'
                                     '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-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['surf', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1963'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes;set-cover or covered'
                                             'bpm'  '85.6'
                                             '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))                     '85.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes', 'set-cover or covered']
'TDRC' (Recording time)                             '1963'
'TIT2' (Title/songname/content description)         'Louie Louie'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Chan-Dells'
'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'                                      'US'
'TXXX:discogstags'                                  ['surf', 'rock']
'TXXX:other'                                        'US'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+18.02 dB'
'TXXX:replaygain_track_peak'                        '0.083927'
'TXXX:tracknum'                                     '01'

========================== row from database ==========================
                                              'id'  504031
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT147/01 - The Chan-Dells (1963 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  140
                                           'genre'  rock-gr-garage;set-pl-garagetapes;set-cover or covered
                                        'filesize'  3448854
                                           'mtime'  1620384745
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT147 01 (1963 US) rock gr garage;set pl garagetapes;set cover or covered
                                      'tag_artist'  The Chan-Dells
                                     'tag_release'  Tape No147 - Louie Louie (Part IV)
                                       'tag_title'  Louie Louie
                                             'bpm'  85.6
                                    'search_title'  'louie':1
                                   'search_artist'  'chan':2 'chandells':4 'dells':3 'the':1
                                  'search_release'  'iv':6,7 'louie':3 'no147':2 'part':4,5 'tape':1
                                     'search_rest'  '1963':6,7 'blogspot':2 'com':3 'cover':21 'covered':23 'garage':12,14 'garagetapes':1,17,19 'garagetapesblogspotcom':4 'gr':11 'gt147':5 'or':22 'pl':16 'rock':10 'set':13,15,18,20 'us':8,9
                                    'search_combo'  '1963':18,19 'blogspot':14 'chan':3B 'chandells':5B 'com':15 'cover':33 'covered':35 'dells':4B 'garage':24,26 'garagetapes':13,29,31 'garagetapesblogspotcom':16 'gr':23 'gt147':17 'iv':11C,12C 'louie':1A,8C 'no147':7C 'or':34 'part':9C,10C 'pl':28 'rock':22 'set':25,27,30,32 'tape':6C 'the':2B 'us':20,21
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9B
                                           '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-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1963
                                     'discogstags'  ['surf', 'rock']

============================== file details ==============================
                                           'mtime'  1620384744.6354344  (2021-05-07 12:52:24)
                             'size'  3448854