======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '166'
                                          'artist'  'Qeqrp{ Tednpnb{'
                                     'text_people'  ''
                                         'release'  'B. jnbkeb (a`\x7fm)'
                                           'title'  'Oph dnkhme jsqr j`khm{'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-russia'
                                             'bpm'  '129.150'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'{\r\x00\x00')
'PRIV:PeakValue:!g\x00\x00'                         PRIV(owner='PeakValue', data=b'!g\x00\x00')
'TALB' (Album/Movie/Show title)                     'B. jnbkeb (a`\x7fm)'
'TBPM' (BPM (beats per minute))                     '129.150'
'TCON' (Content type, a.k.a. Genre)                 'loc-russia'
'TIT2' (Title/songname/content description)         'Oph dnkhme jsqr j`khm{'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Qeqrp{ Tednpnb{'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+11.11 dB'
'TXXX:replaygain_track_peak'                        '0.169206'

========================== row from database ==========================
                                              'id'  765146
                                            'path'  /data/Music/Bulk/00localcharacter/Sestry_Fedorovy/Sestry Fedorovy - Pri doline kust kaliny.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  166
                                           'genre'  loc-russia
                                        'filesize'  1333396
                                           'mtime'  1621629770
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Sestry_Fedorovy Sestry Fedorovy Pri doline kust kaliny loc russia
                                      'tag_artist'  Qeqrp{ Tednpnb{
                                     'tag_release'  B. jnbkeb (a`m)
                                       'tag_title'  Oph dnkhme jsqr j`khm{
                                             'bpm'  129.15
                                    'search_title'  'dnkhme':2 'j':4 'jsqr':3 'khm':5 'oph':1
                                   'search_artist'  'qeqrp':1 'tednpnb':2
                                  'search_release'  'a':4,6 'b':1,2 'jnbkeb':3 'm':5,7
                                     'search_rest'  'doline':6 'fedorovy':2,4 'kaliny':8 'kust':7 'loc':9 'pri':5 'russia':10 'sestry':1,3
                                    'search_combo'  'a':11C,13C 'b':8C,9C 'dnkhme':2A 'doline':20 'fedorovy':16,18 'j':4A 'jnbkeb':10C 'jsqr':3A 'kaliny':22 'khm':5A 'kust':21 'loc':23 'm':12C,14C 'oph':1A 'pri':19 'qeqrp':6B 'russia':24 'sestry':15,17 'tednpnb':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629769.652991  (2021-05-21 22:42:49)
                             'size'  1333396