======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '59'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'unheard melodies - rare music from film noir cinema vol. 2'
                                           'title'  'Knock Any Door  2'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1949'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '141.710'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'unheard melodies - rare music from film noir cinema vol. 2'
'TBPM' (BPM (beats per minute))                     '141.710'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1949'
'TIT2' (Title/songname/content description)         'Knock Any Door  2'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.06 dB'
'TXXX:replaygain_track_peak'                        '0.537685'

========================== row from database ==========================
                                              'id'  647444
                                            'path'  /data/Music/Bulk/00localcharacter/VA - unheard melodies - rare music from film noir cinema vol. 2/1949  Knock Any Door  2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  59
                                           'genre'  soundtrack-video
                                        'filesize'  2386548
                                           'mtime'  1636923450
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA 1949 soundtrack video
                                      'tag_artist'  [unknown]
                                     'tag_release'  unheard melodies - rare music from film noir cinema vol. 2
                                       'tag_title'  Knock Any Door  2
                                             'bpm'  141.71
                                    'search_title'  '2':4 'any':2 'door':3 'knock':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  '2':11 'cinema':8 'film':6 'from':5 'melodies':2 'music':4 'noir':7 'rare':3 'unheard':1 'vol':9,10
                                     'search_rest'  '1949':2 'soundtrack':3 'va':1 'video':4
                                    'search_combo'  '1949':19 '2':4A,17C 'any':2A 'cinema':14C 'door':3A 'film':12C 'from':11C 'knock':1A 'melodies':8C 'music':10C 'noir':13C 'rare':9C 'soundtrack':20 'unheard':7C 'unknown':5B,6B 'va':18 'video':21 'vol':15C,16C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1949
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636923450.0294123  (2021-11-14 21:57:30)
                             'size'  2386548