======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '213'
                                          'artist'  'Darkthrone'
                                     'text_people'  ''
                                         'release'  'Under a Funeral Moon'
                                           'title'  'Natassja in Eternal Sleep'
                                           '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-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['norway', 'black metal', 'metal', 'norwegian black metal', 'blackened punk "
 "rock']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'eid-metal-death;eid-metal-black'
                                             'bpm'  '142.108'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Under a Funeral Moon'
'TBPM' (BPM (beats per minute))                     '142.108'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death', 'eid-metal-black']
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Natassja in Eternal Sleep'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Darkthrone'
'TRCK' (Track number/Position in set)               '01'
'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:QuodLibet::location'                          'NO'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['norway',
 'black metal',
 'metal',
 'norwegian black metal',
 'blackened punk rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.517060'

========================== row from database ==========================
                                              'id'  934609
                                            'path'  /data/Music/Bulk/00dwimp/Darkthrone/Darkthrone - NO - 1993 - Under A Funeral Moon/Darkthrone - NO - 1993 - Under a Funeral Moon - 01 - Natassja in Eternal Sleep.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  213
                                           'genre'  eid-metal-death;eid-metal-black
                                        'filesize'  5124096
                                           'mtime'  1620302120
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp NO 1993 A NO 1993 01 eid metal death;eid metal black
                                      'tag_artist'  Darkthrone
                                     'tag_release'  Under a Funeral Moon
                                       'tag_title'  Natassja in Eternal Sleep
                                             'bpm'  142.108
                                    'search_title'  'eternal':3 'in':2 'natassja':1 'sleep':4
                                   'search_artist'  'darkthrone':1
                                  'search_release'  'a':2 'funeral':3 'moon':4 'under':1
                                     'search_rest'  '00dwimp':1 '1993':3 'a':4 'black':11 'death':7,9 'eid':5,8,10 'metal':6 'no':2
                                    'search_combo'  '00dwimp':10 '1993':12 'a':7C,13 'black':20 'darkthrone':5B 'death':16,18 'eid':14,17,19 'eternal':3A 'funeral':8C 'in':2A 'metal':15 'moon':9C 'natassja':1A 'no':11 'sleep':4A 'under':6C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['norway', 'black metal', 'metal', 'norwegian black metal', 'blackened punk rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302119.710129  (2021-05-06 13:55:19)
                             'size'  5124096