======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '280'
                                          'artist'  'Agni Natchattiram'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ninnukori Varnam'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc'
                                             'bpm'  '93.242'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '93.242'
'TCON' (Content type, a.k.a. Genre)                 'loc'
'TIT2' (Title/songname/content description)         'Ninnukori Varnam'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Agni Natchattiram'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.384505'

========================== row from database ==========================
                                              'id'  1491540
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Agni Natchattiram - Ninnukori Varnam.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  280
                                           'genre'  loc
                                        'filesize'  4486550
                                           'mtime'  1637330222
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch loc
                                      'tag_artist'  Agni Natchattiram
                                     'tag_release'  None
                                       'tag_title'  Ninnukori Varnam
                                             'bpm'  93.242
                                    'search_title'  'ninnukori':1 'varnam':2
                                   'search_artist'  'agni':1 'natchattiram':2
                                  'search_release'  
                                     'search_rest'  '00dutch':4 '00mid':1 'europe':3 'loc':5 'north':2
                                    'search_combo'  '00dutch':8 '00mid':5 'agni':3B 'europe':7 'loc':9 'natchattiram':4B 'ninnukori':1A 'north':6 'varnam':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330221.9437163  (2021-11-19 14:57:01)
                             'size'  4486550