======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '341'
                                          'artist'  'Birth Control'
                                     'text_people'  ''
                                         'release'  'Tape No156 - Covering The Doors (Part III)'
                                           'title'  'Light My Fire'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-LOCALNESS-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']")
                                      'lastfmtags'  "['german', 'krautrock', 'hard rock', 'progressive rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '110.1'
                                             'key'  '10A'
                                        '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 No156 - Covering The Doors (Part III)'
'TBPM' (BPM (beats per minute))                     '110.1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Light My Fire'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Birth Control'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'DE'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'hard rock', 'progressive rock', 'rock']
'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'                        '+22.61 dB'
'TXXX:replaygain_track_peak'                        '0.041380'
'TXXX:tracknum'                                     '09'

========================== row from database ==========================
                                              'id'  502652
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT156/09 - Birth Control - Light My Fire (1970 DE).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  341
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  8258011
                                           'mtime'  1620384835
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT156 09 (1970 DE) rock gr garage;set pl garagetapes
                                      'tag_artist'  Birth Control
                                     'tag_release'  Tape No156 - Covering The Doors (Part III)
                                       'tag_title'  Light My Fire
                                             'bpm'  110.1
                                    'search_title'  'fire':3 'light':1 'my':2
                                   'search_artist'  'birth':1 'control':2
                                  'search_release'  'covering':3 'doors':5 'iii':8,9 'no156':2 'part':6,7 'tape':1 'the':4
                                     'search_rest'  '1970':6,7 'blogspot':2 'com':3 'de':8,9 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt156':5 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1970':20,21 'birth':4B 'blogspot':16 'com':17 'control':5B 'covering':8C 'de':22,23 'doors':10C 'fire':3A 'garage':26,28 'garagetapes':15,31 'garagetapesblogspotcom':18 'gr':25 'gt156':19 'iii':13C,14C 'light':1A 'my':2A 'no156':7C 'part':11C,12C 'pl':30 'rock':24 'set':27,29 'tape':6C 'the':9C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', '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'  ['german', 'krautrock', 'hard rock', 'progressive rock', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620384835.0289097  (2021-05-07 12:53:55)
                             'size'  8258011