======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '107'
                                          'artist'  'Dimitri Tiomkin'
                                     'text_people'  ''
                                         'release'  'unheard melodies - rare music from film noir cinema vol. 1'
                                           'title'  'Shadow of a Doubt'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'film score', 'score', 'classical', 'composer']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '121.774'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'unheard melodies - rare music from film noir cinema vol. 1'
'TBPM' (BPM (beats per minute))                     '121.774'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'Shadow of a Doubt'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dimitri Tiomkin'
'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:lastfmtags'                                   ['soundtrack', 'film score', 'score', 'classical', 'composer']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                        '-1.01 dB'
'TXXX:replaygain_track_peak'                        '0.448969'

========================== row from database ==========================
                                              'id'  647322
                                            'path'  /data/Music/Bulk/00localcharacter/VA - unheard melodies - rare music from film noir cinema vol. 1/1943  Shadow of a Doubt  (Dimitri Tiomkin).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  107
                                           'genre'  soundtrack-video
                                        'filesize'  4313340
                                           'mtime'  1636923454
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA 1943 (Dimitri Tiomkin) soundtrack video
                                      'tag_artist'  Dimitri Tiomkin
                                     'tag_release'  unheard melodies - rare music from film noir cinema vol. 1
                                       'tag_title'  Shadow of a Doubt
                                             'bpm'  121.774
                                    'search_title'  'a':3 'doubt':4 'of':2 'shadow':1
                                   'search_artist'  'dimitri':1 'tiomkin':2
                                  'search_release'  '1':11 'cinema':8 'film':6 'from':5 'melodies':2 'music':4 'noir':7 'rare':3 'unheard':1 'vol':9,10
                                     'search_rest'  '1943':2 'dimitri':3,4 'soundtrack':7 'tiomkin':5,6 'va':1 'video':8
                                    'search_combo'  '1':17C '1943':19 'a':3A 'cinema':14C 'dimitri':5B,20,21 'doubt':4A 'film':12C 'from':11C 'melodies':8C 'music':10C 'noir':13C 'of':2A 'rare':9C 'shadow':1A 'soundtrack':24 'tiomkin':6B,22,23 'unheard':7C 'va':18 'video':25 'vol':15C,16C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'film score', 'score', 'classical', 'composer']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636923453.8691833  (2021-11-14 21:57:33)
                             'size'  4313340