======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '318'
                                          'artist'  'Agnes Strange'
                                     'text_people'  ''
                                         'release'  'Strange Flavour'
                                           'title'  'Failure'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '108.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Strange Flavour'
'TBPM' (BPM (beats per minute))                     '108.9'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Failure'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Agnes Strange'
'TPE2' (Band/orchestra/accompaniment)               'Agnes Strange'
'TRCK' (Track number/Position in set)               '8'
'TXXX:GN_ExtData'                                   'GNXDWEcxAdDSUe5hAmHwvKenWX56o9VrYFVd2Tk8aoJy3/sr70QOlp1iVQYXvw2zNwBWYS9YyRgSozeK'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-7.13 dB'
'TXXX:replaygain_track_peak'                        '1.051347'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N83S8800148U1689C6F26710642277A7E4FD262ABFCA679P2\x00')

========================== row from database ==========================
                                              'id'  1481460
                                            'path'  /data/Music/Bulk/00poprockelectronic/strange flavour/08 - failure - 5.18.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  318
                                           'genre'  rock-cppex
                                        'filesize'  10211200
                                           'mtime'  1636915303
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic strange flavour 08 failure 5.18 rock cppex
                                      'tag_artist'  Agnes Strange
                                     'tag_release'  Strange Flavour
                                       'tag_title'  Failure
                                             'bpm'  108.9
                                    'search_title'  'failure':1
                                   'search_artist'  'agnes':1 'strange':2
                                  'search_release'  'flavour':2 'strange':1
                                     'search_rest'  '00poprockelectronic':1 '18':6 '5':5 '518':7 'cppex':9 'failure':4 'flavour':3 'rock':8 'strange':2
                                    'search_combo'  '00poprockelectronic':6 '18':11 '5':10 '518':12 'agnes':2B 'cppex':14 'failure':1A,9 'flavour':5C,8 'rock':13 'strange':3B,4C,7
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636915302.67369  (2021-11-14 19:41:42)
                             'size'  10211200