======================== unified (from filesystem) ========================
                                         'bitrate'  '254.322'
                                        'duration'  '1292'
                                          'artist'  'Tarun Bhattacharya/Ronu Majumdar/Abhijit Banerjee'
                                     'text_people'  ''
                                         'release'  'Rag Jog'
                                           'title'  'Gat, drut in teen-tal (16 beats)'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'Q-PIANO-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-2', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  '03'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '134.199'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rag Jog'
'TBPM' (BPM (beats per minute))                     '134.199'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Gat, drut in teen-tal (16 beats)'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tarun Bhattacharya/Ronu Majumdar/Abhijit Banerjee'
'TRCK' (Track number/Position in set)               '03/03'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.16 dB'
'TXXX:replaygain_track_peak'                        '0.994082'

========================== row from database ==========================
                                              'id'  730782
                                            'path'  /data/Music/Bulk/00localcharacter/Tarun Bhattacharya, Ronu Majumdar, Abhijit Banerjee/Rag Jog/03-Gat, drut in teen-tal (16 beats).mp3
                                         'working'  None
                                         'bitrate'  254
                                    'duration_sec'  1292
                                           'genre'  loc-unsorted
                                        'filesize'  41094895
                                           'mtime'  1620401436
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Bhattacharya, Majumdar, 03 loc unsorted
                                      'tag_artist'  Tarun Bhattacharya/Ronu Majumdar/Abhijit Banerjee
                                     'tag_release'  Rag Jog
                                       'tag_title'  Gat, drut in teen-tal (16 beats)
                                             'bpm'  134.199
                                    'search_title'  '16':8,9 'beats':10,11 'drut':3 'gat':1,2 'in':4 'tal':6 'teen':5 'teental':7
                                   'search_artist'  'abhijit':6 'banerjee':8 'bhattacharya':2 'bhattacharyaronu':4 'majumdar':5 'majumdarabhijit':7 'ronu':3 'tarun':1
                                  'search_release'  'jog':2 'rag':1
                                     'search_rest'  'bhattacharya':1,2 'loc':5 'majumdar':3,4 'unsorted':6
                                    'search_combo'  '16':8A,9A 'abhijit':17B 'banerjee':19B 'beats':10A,11A 'bhattacharya':13B,22,23 'bhattacharyaronu':15B 'drut':3A 'gat':1A,2A 'in':4A 'jog':21C 'loc':26 'majumdar':16B,24,25 'majumdarabhijit':18B 'rag':20C 'ronu':14B 'tal':6A 'tarun':12B 'teen':5A 'teental':7A 'unsorted':27
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401435.566285  (2021-05-07 17:30:35)
                             'size'  41094895