======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '168'
                                          'artist'  'Crystal Palace'
                                     'text_people'  ''
                                         'release'  'Tape No222 - Human Behavior'
                                           'title'  "Thinkin' About"
                                           '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'progressive']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '103.4'
                                             'key'  '9A'
                                        '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 No222 - Human Behavior'
'TBPM' (BPM (beats per minute))                     '103.4'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "Thinkin' About"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Crystal Palace'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '04'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['progressive rock', 'progressive']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+17.56 dB'
'TXXX:replaygain_track_peak'                        '0.054400'
'TXXX:tracknum'                                     '04'

========================== row from database ==========================
                                              'id'  1496739
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT222/04 - Crystal Palace - Thinkin_ About (196 US) (Eyelid).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4113562
                                           'mtime'  1620385369
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT222 04 Thinkin_ (196 US) (Eyelid) rock gr garage;set pl garagetapes
                                      'tag_artist'  Crystal Palace
                                     'tag_release'  Tape No222 - Human Behavior
                                       'tag_title'  Thinkin' About
                                             'bpm'  103.4
                                    'search_title'  'about':3 'thinkin':1,2
                                   'search_artist'  'crystal':1 'palace':2
                                  'search_release'  'behavior':4 'human':3 'no222':2 'tape':1
                                     'search_rest'  '196':7,8 'blogspot':2 'com':3 'eyelid':11,12 'garage':15,17 'garagetapes':1,20 'garagetapesblogspotcom':4 'gr':14 'gt222':5 'pl':19 'rock':13 'set':16,18 'thinkin':6 'us':9,10
                                    'search_combo'  '196':16,17 'about':3A 'behavior':9C 'blogspot':11 'com':12 'crystal':4B 'eyelid':20,21 'garage':24,26 'garagetapes':10,29 'garagetapesblogspotcom':13 'gr':23 'gt222':14 'human':8C 'no222':7C 'palace':5B 'pl':28 'rock':22 'set':25,27 'tape':6C 'thinkin':1A,2A,15 'us':18,19
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9A
                                           '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-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'progressive']
                                        'tag_date'  1965
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620385368.6525004  (2021-05-07 13:02:48)
                             'size'  4113562