======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '667'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'klasik turk musikisi'
                                           'title'  'neva kar'
                                           '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-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m-turkey-classical'
                                             'bpm'  '136.920'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x1a\x16\x00\x00'                PRIV(owner='AverageLevel', data=b'\x1a\x16\x00\x00')
'PRIV:PeakValue:y\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'y\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'klasik turk musikisi'
'TBPM' (BPM (beats per minute))                     '136.920'
'TCON' (Content type, a.k.a. Genre)                 'loc-m-turkey-classical'
'TIT2' (Title/songname/content description)         'neva kar'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.592177'
'TXXX:tracknum'                                     '02'

========================== row from database ==========================
                                              'id'  310999
                                            'path'  /data/Music/Bulk/00localcharacter/musique de Turquie/klasik turk musikisi/02 neva kar.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  667
                                           'genre'  loc-m-turkey-classical
                                        'filesize'  16018090
                                           'mtime'  1620527386
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter musique de Turquie 02 loc turkey classical
                                      'tag_artist'  [unknown]
                                     'tag_release'  klasik turk musikisi
                                       'tag_title'  neva kar
                                             'bpm'  136.92
                                    'search_title'  'kar':2 'neva':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'klasik':1 'musikisi':3 'turk':2
                                     'search_rest'  'classical':6 'de':2 'loc':4 'musique':1 'turkey':5 'turquie':3
                                    'search_combo'  'classical':13 'de':9 'kar':2A 'klasik':5C 'loc':11 'musikisi':7C 'musique':8 'neva':1A 'turk':6C 'turkey':12 'turquie':10 'unknown':3B,4B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527386.2859967  (2021-05-09 04:29:46)
                             'size'  16018090