======================== unified (from filesystem) ========================
                                         'bitrate'  '221.817'
                                        'duration'  '308'
                                          'artist'  'Khaled'
                                     'text_people'  ''
                                         'release'  'Sahra'
                                           'title'  'Oran Marseille'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['algerian', 'rai', 'world music', 'world', 'arabic']"
                                     'discogstags'  ("['electronic', 'pop', 'folk, world, & country', 'modern classical', "
 "'europop', 'downtempo', 'raï']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '121.628'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sahra'
'TBPM' (BPM (beats per minute))                     '121.628'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Oran Marseille'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Khaled'
'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:discogstags'                                  ['electronic',
 'pop',
 'folk, world, & country',
 'modern classical',
 'europop',
 'downtempo',
 'raï']
'TXXX:lastfmtags'                                   ['algerian', 'rai', 'world music', 'world', 'arabic']
'TXXX:original release date'                        ['1996', '1997']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.02 dB'
'TXXX:replaygain_track_peak'                        '0.520196'

========================== row from database ==========================
                                              'id'  1339083
                                            'path'  /data/Music/Bulk/00poprockelectronic/Khaled/Sahra/02 Oran Marseille.wma.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  308
                                           'genre'  loc-m
                                        'filesize'  8552377
                                           'mtime'  1620527787
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 Marseille.wma loc m
                                      'tag_artist'  Khaled
                                     'tag_release'  Sahra
                                       'tag_title'  Oran Marseille
                                             'bpm'  121.628
                                    'search_title'  'marseille':2 'oran':1
                                   'search_artist'  'khaled':1
                                  'search_release'  'sahra':1
                                     'search_rest'  '00poprockelectronic':1 'loc':5 'm':6 'marseille':2 'marseillewma':4 'wma':3
                                    'search_combo'  '00poprockelectronic':5 'khaled':3B 'loc':9 'm':10 'marseille':2A,6 'marseillewma':8 'oran':1A 'sahra':4C 'wma':7
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['algerian', 'rai', 'world music', 'world', 'arabic']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic', 'pop', 'folk, world, & country', 'modern classical', 'europop', 'downtempo', 'raï']

============================== file details ==============================
                                           'mtime'  1620527787.236797  (2021-05-09 04:36:27)
                             'size'  8552377