======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '201'
                                          'artist'  'God Among Insects'
                                     'text_people'  'God Among Insects'
                                         'release'  'World Wide Death'
                                           'title'  'A Gush of Blood'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['death metal', 'brutal death metal', 'swedish']"
                                     'discogstags'  "['death metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '123.6'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'World Wide Death'
'TBPM' (BPM (beats per minute))                     '123.6'
'TCOM' (Composer)                                   'Caligula, Emperor Magus/Louie Martinez/Philipson, Lord K'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TCOP' (Copyright message)                          '2004 God Among Insects'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'A Gush of Blood'
'TKEY' (Initial key)                                '3A'
'TOPE' (Original artist(s)/performer(s))            'God Among Insects'
'TPE1' (Lead performer(s)/Soloist(s))               'God Among Insects'
'TPE2' (Band/orchestra/accompaniment)               'God Among Insects'
'TPUB' (Publisher)                                  'Candlelight'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['death metal', 'rock']
'TXXX:lastfmtags'                                   ['death metal', 'brutal death metal', 'swedish']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.21 dB'
'TXXX:replaygain_track_peak'                        '0.422180'

========================== row from database ==========================
                                              'id'  1419111
                                            'path'  /data/Music/Bulk/00dwimp/God Among Insects/World Wide Death/God Among Insects-A Gush of Blood.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  201
                                           'genre'  rock-unsorted
                                        'filesize'  3233664
                                           'mtime'  1620381092
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp rock unsorted
                                      'tag_artist'  God Among Insects
                                     'tag_release'  World Wide Death
                                       'tag_title'  A Gush of Blood
                                             'bpm'  123.6
                                    'search_title'  'a':1 'blood':4 'gush':2 'of':3
                                   'search_artist'  'among':2 'god':1 'insects':3
                                  'search_release'  'death':3 'wide':2 'world':1
                                     'search_rest'  '00dwimp':1 'rock':2 'unsorted':3
                                    'search_combo'  '00dwimp':11 'a':1A 'among':6B 'blood':4A 'death':10C 'god':5B 'gush':2A 'insects':7B 'of':3A 'rock':12 'unsorted':13 'wide':9C 'world':8C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['death metal', 'brutal death metal', 'swedish']
                                        'tag_date'  2004
                                     'discogstags'  ['death metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620381091.7258682  (2021-05-07 11:51:31)
                             'size'  3233664