======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '155'
                                          'artist'  'Zemfira'
                                     'text_people'  ''
                                         'release'  'Zemfira'
                                           'title'  'Sneg'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['russian rock', 'rock', 'female vocalists', 'russian', 'pop-rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-russia'
                                             'bpm'  '145.163'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Zemfira'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'loc-russia'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Sneg'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Zemfira'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['russian rock', 'rock', 'female vocalists', 'russian', 'pop-rock']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.484340'

========================== row from database ==========================
                                              'id'  408879
                                            'path'  /data/Music/Bulk/00localcharacter/Zemfira/01 - Zemfira (1999)/02 Sneg.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  155
                                           'genre'  loc-russia
                                        'filesize'  6232253
                                           'mtime'  1638545097
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 01 (1999) 02 loc russia
                                      'tag_artist'  Zemfira
                                     'tag_release'  Zemfira
                                       'tag_title'  Sneg
                                             'bpm'  145.163
                                    'search_title'  'sneg':1
                                   'search_artist'  'zemfira':1
                                  'search_release'  'zemfira':1
                                     'search_rest'  '1999':1,2 'loc':3 'russia':4
                                    'search_combo'  '1999':4,5 'loc':6 'russia':7 'sneg':1A 'zemfira':2B,3C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian rock', 'rock', 'female vocalists', 'russian', 'pop-rock']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638545097.388388  (2021-12-03 16:24:57)
                             'size'  6232253