======================== unified (from filesystem) ========================
                                         'bitrate'  '266.634'
                                        'duration'  '270'
                                          'artist'  'Amon Amarth'
                                     'text_people'  ''
                                         'release'  'Fate of Norns Digipak'
                                           'title'  'Pursuit of Vikings'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '130.230'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x80/\x00\x00'                   PRIV(owner='AverageLevel', data=b'\x80/\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Fate of Norns Digipak'
'TBPM' (BPM (beats per minute))                     '130.230'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'Lame'
'TIT2' (Title/songname/content description)         'Pursuit of Vikings'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amon Amarth'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.309321'

========================== row from database ==========================
                                              'id'  1395637
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Amon Amarth/Fate of Norns/04-pursuit_of_vikings-phear.mp3
                                         'working'  None
                                         'bitrate'  266
                                    'duration_sec'  270
                                           'genre'  eid-metal-death
                                        'filesize'  9013917
                                           'mtime'  1620301827
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 04 pursuit_of_vikings phear eid metal death
                                      'tag_artist'  Amon Amarth
                                     'tag_release'  Fate of Norns Digipak
                                       'tag_title'  Pursuit of Vikings
                                             'bpm'  130.23
                                    'search_title'  'of':2 'pursuit':1 'vikings':3
                                   'search_artist'  'amarth':2 'amon':1
                                  'search_release'  'digipak':4 'fate':1 'norns':3 'of':2
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':9 'eid':7 'metal':8 'of':4 'phear':6 'pursuit':3 'vikings':5
                                    'search_combo'  '00dwimp':10 '00metal':11 'amarth':5B 'amon':4B 'death':18 'digipak':9C 'eid':16 'fate':6C 'metal':17 'norns':8C 'of':2A,7C,13 'phear':15 'pursuit':1A,12 'vikings':3A,14
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'death metal', 'melodic death metal', 'viking metal', 'metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301826.5777853  (2021-05-06 13:50:26)
                             'size'  9013917