======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '460'
                                          'artist'  'Corvuz'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Сквозь Ночной Туман (Through The Night Mist)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dark ambient', 'dark death ambient', 'dark horror ambient', 'ambient']"
                                     'discogstags'  "['dark ambient', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '138.8'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '138.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Сквозь Ночной Туман (Through The Night Mist)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Corvuz'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['dark ambient', 'electronic']
'TXXX:lastfmtags'                                   ['dark ambient', 'dark death ambient', 'dark horror ambient', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.44 dB'
'TXXX:replaygain_track_peak'                        '0.523432'

========================== row from database ==========================
                                              'id'  1425330
                                            'path'  /data/Music/Bulk/00poprockelectronic/00drone/Corvuz - Сквозь Ночной Туман (Through The Night Mist).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  460
                                           'genre'  electronic-drone
                                        'filesize'  9217914
                                           'mtime'  1636912567
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00drone electronic drone
                                      'tag_artist'  Corvuz
                                     'tag_release'  None
                                       'tag_title'  Сквозь Ночной Туман (Through The Night Mist)
                                             'bpm'  138.8
                                    'search_title'  'mist':12,13 'night':11 'nochnoi':5 'skvoz':2,3 'the':10 'through':8,9 'tuman':7 'ночнои':4 'сквозь':1 'туман':6
                                   'search_artist'  'corvuz':1
                                  'search_release'  
                                     'search_rest'  '00drone':2 '00poprockelectronic':1 'drone':4 'electronic':3
                                    'search_combo'  '00drone':16 '00poprockelectronic':15 'corvuz':14B 'drone':18 'electronic':17 'mist':12A,13A 'night':11A 'nochnoi':5A 'skvoz':2A,3A 'the':10A 'through':8A,9A 'tuman':7A 'ночнои':4A 'сквозь':1A 'туман':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'dark death ambient', 'dark horror ambient', 'ambient']
                                        'tag_date'  2010
                                     'discogstags'  ['dark ambient', 'electronic']

============================== file details ==============================
                                           'mtime'  1636912566.8901134  (2021-11-14 18:56:06)
                             'size'  9217914