======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '418'
                                          'artist'  'Vespero'
                                     'text_people'  ''
                                         'release'  'Крабы на берегу'
                                           'title'  'Космическая принцесса'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '9'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic-space;set-pl-progspace'
                                             'bpm'  '105.6'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunes_CDDB_1:eng'                            '7B0CD109+246225+9+150+32651+57322+89115+111922+147955+171343+196816+228206'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'TALB' (Album/Movie/Show title)                     'Крабы на берегу'
'TBPM' (BPM (beats per minute))                     '105.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic-space', 'set-pl-progspace']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Космическая принцесса'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vespero'
'TPE2' (Band/orchestra/accompaniment)               'Vespero'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '8/9'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.99.5 (http://lame.sf.net)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.717792'

========================== row from database ==========================
                                              'id'  1413946
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Vespero - Крабы на берегу (2006)/08 - Космическая принцесса.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  418
                                           'genre'  rock-cppex-psychedelic-space;set-pl-progspace
                                        'filesize'  16876888
                                           'mtime'  1620736202
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (2006) 08 rock cppex psychedelic space;set pl progspace
                                      'tag_artist'  Vespero
                                     'tag_release'  Крабы на берегу
                                       'tag_title'  Космическая принцесса
                                             'bpm'  105.6
                                    'search_title'  'kosmicheskaya':2 'princessa':4 'космическая':1 'принцесса':3
                                   'search_artist'  'vespero':1
                                  'search_release'  'beregu':6 'kraby':2 'na':4 'берегу':5 'крабы':1 'на':3
                                     'search_rest'  '2006':2,3 'classicprogpsy':1 'cppex':5 'pl':11 'progspace':12 'psychedelic':6 'rock':4 'set':8,10 'space':7,9
                                    'search_combo'  '2006':13,14 'beregu':11C 'classicprogpsy':12 'cppex':16 'kosmicheskaya':2A 'kraby':7C 'na':9C 'pl':22 'princessa':4A 'progspace':23 'psychedelic':17 'rock':15 'set':19,21 'space':18,20 'vespero':5B 'берегу':10C 'космическая':1A 'крабы':6C 'на':8C 'принцесса':3A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']
                                        'tag_date'  2006
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736201.8204944  (2021-05-11 14:30:01)
                             'size'  16876888