<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '299'
                                          'artist'  'Виктор Цой'
                                     'text_people'  ''
                                         'release'  'Печаль'
                                           'title'  'Группа крови (remix)'
                                           'quals'  ("['Q-PLAY-3', 'Q-CHART-2', 'Q-MIXBEAT-2', 'q-bass-3', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '12'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '134.4'
                                             'key'  '1A'
                                        'acoustid'  'e1699c91-7576-48d3-9d36-1b0180b268a6'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1610>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1539989"/>
'TALB' (Album/Movie/Show title)                     'Печаль'
'TBPM' (BPM (beats per minute))                     '134.4'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Группа крови (remix)'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Виктор Цой'
'TPE2' (Band/orchestra/accompaniment)               'Виктор Цой'
'TPE4' (Interpreted, remixed, or otherwise modified by)  'Рикошет'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Квадро-Диск'
'TRCK' (Track number/Position in set)               '11/12'
'TSO2'                                              'Tsoy, Viktor'
'TSOP' (Performer sort order)                       'Tsoy, Viktor'
'TXXX:ARTISTS'                                      'Виктор Цой'
'TXXX:Acoustid Id'                                  'e1699c91-7576-48d3-9d36-1b0180b268a6'
'TXXX:BARCODE'                                      '4606344000551'
'TXXX:CATALOGNUMBER'                                'RS 707'
'TXXX:MusicBrainz Album Artist Id'                  '7da030e4-3b08-4e29-b497-344d809589fd'
'TXXX:MusicBrainz Album Id'                         '5f37bd17-ae2a-419c-b12f-efc98ffc2f6b'
'TXXX:MusicBrainz Album Release Country'            'RU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/remix'
'TXXX:MusicBrainz Artist Id'                        '7da030e4-3b08-4e29-b497-344d809589fd'
'TXXX:MusicBrainz Release Group Id'                 'de4c2374-a0fa-4a6c-8c54-4c831880017c'
'TXXX:MusicBrainz Release Track Id'                 'f83c9a2f-ad88-31e7-8e76-69241c8d0dfb'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:SCRIPT'                                       'Cyrl'
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b81a9071-143d-493a-a79f-93c89343eec4')

========================== row from database ==========================
                                              'id'  1539989
                                            'path'  /data/Music/Bulk/Unsorted/2000 - Печаль/Группа крови remix.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  299
                                           'genre'  
                                        'filesize'  4885275
                                           'mtime'  1695907286
                                   'redo_metaread'  0
                                        'rest_str'   Unsorted 2000
                                      'tag_artist'  Виктор Цой
                                     'tag_release'  Печаль
                                       'tag_title'  Группа крови (remix)
                                             'bpm'  134.4
                                    'search_title'  'gruppa':2 'krovi':4 'remix':5,6 'группа':1 'крови':3
                                   'search_artist'  'coi':4 'viktor':2 'виктор':1 'цои':3
                                  'search_release'  'pechal':2,3 'печаль':1
                                     'search_rest'  '2000':2 'unsorted':1
                                    'search_combo'  '2000':15 'coi':10B 'gruppa':2A 'krovi':4A 'pechal':12C,13C 'remix':5A,6A 'unsorted':14 'viktor':8B 'виктор':7B 'группа':1A 'крови':3A 'печаль':11C 'цои':9B
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-PLAY-3', 'Q-CHART-2', 'Q-MIXBEAT-2', 'q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1695907286.1188626  (2023-09-28 15:21:26)
                             'size'  4885275