<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'Johnny Fortune'
                                     'text_people'  ''
                                         'release'  'Tape No220 - Baby Love Me Too'
                                           'title'  'Stay Just One More Day'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', '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']")
                                      'lastfmtags'  "['surf', 'instrumental', 'surf rock', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '140.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81820>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=504690"/>
'COMM::eng'                                         'http://garagetapes.blogspot.gr/'
'TALB' (Album/Movie/Show title)                     'Tape No220 - Baby Love Me Too'
'TBPM' (BPM (beats per minute))                     '140.8'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Stay Just One More Day'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Fortune'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'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:lastfmtags'                                   ['surf', 'instrumental', 'surf rock', 'folk']
'TXXX:q-bass'                                       '2'
'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'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.246674'
'TXXX:tracknum'                                     '02'

========================== row from database ==========================
                                              'id'  504690
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT220/02 - Johnny Fortune - Stay Just One More Day (1966 US) (Beaver).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3611948
                                           'mtime'  1620385357
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT220 02 (1966 US) (Beaver) rock gr garage;set pl garagetapes
                                      'tag_artist'  Johnny Fortune
                                     'tag_release'  Tape No220 - Baby Love Me Too
                                       'tag_title'  Stay Just One More Day
                                             'bpm'  140.8
                                    'search_title'  'day':5 'just':2 'more':4 'one':3 'stay':1
                                   'search_artist'  'fortune':2 'johnny':1
                                  'search_release'  'baby':3 'love':4 'me':5 'no220':2 'tape':1 'too':6
                                     'search_rest'  '1966':6,7 'beaver':10,11 'blogspot':2 'com':3 'garage':14,16 'garagetapes':1,19 'garagetapesblogspotcom':4 'gr':13 'gt220':5 'pl':18 'rock':12 'set':15,17 'us':8,9
                                    'search_combo'  '1966':19,20 'baby':10C 'beaver':23,24 'blogspot':15 'com':16 'day':5A 'fortune':7B 'garage':27,29 'garagetapes':14,32 'garagetapesblogspotcom':17 'gr':26 'gt220':18 'johnny':6B 'just':2A 'love':11C 'me':12C 'more':4A 'no220':9C 'one':3A 'pl':31 'rock':25 'set':28,30 'stay':1A 'tape':8C 'too':13C 'us':21,22
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           '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-2', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'instrumental', 'surf rock', 'folk']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385356.7030823  (2021-05-07 13:02:36)
                             'size'  3611948