======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '83'
                                          'artist'  'Hanns Eisler'
                                     'text_people'  ''
                                         'release'  'rare music from film noir cinema vol. 1'
                                           'title'  'Hangmen Also Die   1'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['classical', 'contemporary classical', 'german', 'composer', 'twelve-tone "
 "technique']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-movies'
                                             'bpm'  '143.517'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'rare music from film noir cinema vol. 1'
'TBPM' (BPM (beats per minute))                     '143.517'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-movies'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'Hangmen Also Die   1'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hanns Eisler'
'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'                                   ['classical',
 'contemporary classical',
 'german',
 'composer',
 'twelve-tone technique']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '-1.12 dB'
'TXXX:replaygain_track_peak'                        '0.579828'

========================== row from database ==========================
                                              'id'  980734
                                            'path'  /data/Music/Bulk/0soundtrack/VA - unheard melodies - rare music from film noir cinema vol. 1/1943  Hangmen Also Die   1  (Hanns Eisler).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  83
                                           'genre'  soundtrack-video-movies
                                        'filesize'  3350991
                                           'mtime'  1678983996
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack VA unheard melodies 1943 (Hanns Eisler) soundtrack video movies
                                      'tag_artist'  Hanns Eisler
                                     'tag_release'  rare music from film noir cinema vol. 1
                                       'tag_title'  Hangmen Also Die   1
                                             'bpm'  143.517
                                    'search_title'  '1':4 'also':2 'die':3 'hangmen':1
                                   'search_artist'  'eisler':2 'hanns':1
                                  'search_release'  '1':9 'cinema':6 'film':4 'from':3 'music':2 'noir':5 'rare':1 'vol':7,8
                                     'search_rest'  '0soundtrack':1 '1943':5 'eisler':8,9 'hanns':6,7 'melodies':4 'movies':12 'soundtrack':10 'unheard':3 'va':2 'video':11
                                    'search_combo'  '0soundtrack':16 '1':4A,15C '1943':20 'also':2A 'cinema':12C 'die':3A 'eisler':6B,23,24 'film':10C 'from':9C 'hangmen':1A 'hanns':5B,21,22 'melodies':19 'movies':27 'music':8C 'noir':11C 'rare':7C 'soundtrack':25 'unheard':18 'va':17 'video':26 'vol':13C,14C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'Q-LOCALNESS-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['classical', 'contemporary classical', 'german', 'composer', 'twelve-tone technique']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678983995.8907924  (2023-03-16 17:26:35)
                             'size'  3350991