======================== unified (from filesystem) ========================
                                         'bitrate'  '143.018'
                                        'duration'  '201'
                                          'artist'  'Sabjilar'
                                     'text_people'  'Traditional'
                                         'release'  'The Silk Road: A Musical Caravan'
                                           'title'  'Kvgmen (Khakas)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['traditional', 'throat singing', 'russia', 'folk', 'khakas']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '23'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-m-unsorted'
                                             'bpm'  '119.546'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Silk Road: A Musical Caravan'
'TBPM' (BPM (beats per minute))                     '119.546'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Traditional'
'TCON' (Content type, a.k.a. Genre)                 'loc-m-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Kvgmen (Khakas)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sabjilar'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '4/23'
'TXXX:PERFORMER'                                    ('Slava Kuchenov, Sergei Charkov, Anna Burnakova (T. Levin, Abakan, Khakasia, '
 '2000)')
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:iTunes_CDDB_IDs'                              '23+922B65FD284D2423EC4A1E35F34183D3+2045760'
'TXXX:lastfmtags'                                   ['traditional', 'throat singing', 'russia', 'folk', 'khakas']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.58 dB'
'TXXX:replaygain_track_peak'                        '0.491042'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1396094
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/disc 2/04. Sabjilar - Kogmen (Khakas).mp3
                                         'working'  None
                                         'bitrate'  143
                                    'duration_sec'  201
                                           'genre'  loc-m-unsorted
                                        'filesize'  3609342
                                           'mtime'  1621627089
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east disc 2 04. Kogmen loc unsorted
                                      'tag_artist'  Sabjilar
                                     'tag_release'  The Silk Road: A Musical Caravan
                                       'tag_title'  Kvgmen (Khakas)
                                             'bpm'  119.546
                                    'search_title'  'khakas':2,3 'kvgmen':1
                                   'search_artist'  'sabjilar':1
                                  'search_release'  'a':5 'caravan':7 'musical':6 'road':3,4 'silk':2 'the':1
                                     'search_rest'  '00south':1 '04':7,8 '2':6 'disc':5 'east':4 'europe':2 'kogmen':9 'loc':10 'middle':3 'unsorted':11
                                    'search_combo'  '00south':12 '04':18,19 '2':17 'a':9C 'caravan':11C 'disc':16 'east':15 'europe':13 'khakas':2A,3A 'kogmen':20 'kvgmen':1A 'loc':21 'middle':14 'musical':10C 'road':7C,8C 'sabjilar':4B 'silk':6C 'the':5C 'unsorted':22
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['traditional', 'throat singing', 'russia', 'folk', 'khakas']
                                        'tag_date'  2002
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621627089.45656  (2021-05-21 21:58:09)
                             'size'  3609342