======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '2957'
                                          'artist'  'Nikhil Banerjee'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Kalashri'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['sitar', 'world', 'indian classical', 'hindustani', 'indian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '120.758'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.758'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TENC' (Encoded by)                                 'M.02.12.17-2'
'TIT2' (Title/songname/content description)         'Kalashri'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nikhil Banerjee'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['sitar', 'world', 'indian classical', 'hindustani', 'indian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.40 dB'
'TXXX:replaygain_track_peak'                        '0.691398'

========================== row from database ==========================
                                              'id'  731874
                                            'path'  /data/Music/Bulk/00localcharacter/Nikhil Banerjee/Live Concert Series vol.4-Kalashri/Nikhil Banerjee - Kalashri - 02.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  2957
                                           'genre'  loc-asia-india
                                        'filesize'  47314816
                                           'mtime'  1621629754
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Live Concert Series vol.4 02 loc asia india
                                      'tag_artist'  Nikhil Banerjee
                                     'tag_release'  None
                                       'tag_title'  Kalashri
                                             'bpm'  120.758
                                    'search_title'  'kalashri':1
                                   'search_artist'  'banerjee':2 'nikhil':1
                                  'search_release'  
                                     'search_rest'  '4':5 'asia':8 'concert':2 'india':9 'live':1 'loc':7 'series':3 'vol':4 'vol4':6
                                    'search_combo'  '4':8 'asia':11 'banerjee':3B 'concert':5 'india':12 'kalashri':1A 'live':4 'loc':10 'nikhil':2B 'series':6 'vol':7 'vol4':9
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['sitar', 'world', 'indian classical', 'hindustani', 'indian']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629753.507662  (2021-05-21 22:42:33)
                             'size'  47314816