======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '371'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '002عينا لعيني وفيق حبيب'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '104.175'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '104.175'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TIT2' (Title/songname/content description)         '002عينا لعيني وفيق حبيب'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'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'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.90 dB'
'TXXX:replaygain_track_peak'                        '0.400280'

========================== row from database ==========================
                                              'id'  933430
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/شعبي/001وفيق حبيب عينا لعيني/002عينا لعيني وفيق حبيب.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  371
                                           'genre'  loc-m
                                        'filesize'  5940370
                                           'mtime'  1620526647
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east شعبي 001وفيق loc m
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  002عينا لعيني وفيق حبيب
                                             'bpm'  104.175
                                    'search_title'  '002':2 '002عينا':1 'hbyb':10 'l':5 'wfyq':8 'yne':3 'yny':6 'حبيب':9 'لعيني':4 'وفيق':7
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '001wfyq':9 '001وفيق':8 '00south':1 'by':7 'east':4 'europe':2 'loc':10 'm':11 'middle':3 'sh':6 'شعبي':5
                                    'search_combo'  '001wfyq':21 '001وفيق':20 '002':2A '002عينا':1A '00south':13 'by':19 'east':16 'europe':14 'hbyb':10A 'l':5A 'loc':22 'm':23 'middle':15 'sh':18 'unknown':11B,12B 'wfyq':8A 'yne':3A 'yny':6A 'حبيب':9A 'شعبي':17 'لعيني':4A 'وفيق':7A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526647.4492693  (2021-05-09 04:17:27)
                             'size'  5940370