======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '179'
                                          'artist'  'Nagaraja Rao'
                                     'text_people'  ''
                                         'release'  'Vintage Music From India'
                                           'title'  'Rag Hamsadhwani'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '21'
                                      'tracktotal'  '24'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '93.457'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000003B7 00000400 00008A2A'
'COMM:iTunNORM:eng'                                 (' 000003B7 00000400 00008A2A 00009462 00015C5E 00015C5E 00007B08 0000794B '
 '00015AD6 00015AD6')
'COMM:iTunes_CDDB_IDs:eng'                          '24+11A5ED80E861667E422017C0A46D292E+920716'
'TALB' (Album/Movie/Show title)                     'Vintage Music From India'
'TBPM' (BPM (beats per minute))                     '93.457'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'iTunes v4.7.1'
'TIT2' (Title/songname/content description)         'Rag Hamsadhwani'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nagaraja Rao'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '21/24'
'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'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.675107'

========================== row from database ==========================
                                              'id'  1396988
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Vintage Music From India/21 Rag Hamsadhwani.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  179
                                           'genre'  loc-asia-india
                                        'filesize'  4319929
                                           'mtime'  1621627015
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 21 loc asia india
                                      'tag_artist'  Nagaraja Rao
                                     'tag_release'  Vintage Music From India
                                       'tag_title'  Rag Hamsadhwani
                                             'bpm'  93.457
                                    'search_title'  'hamsadhwani':2 'rag':1
                                   'search_artist'  'nagaraja':1 'rao':2
                                  'search_release'  'from':3 'india':4 'music':2 'vintage':1
                                     'search_rest'  '00asia':1 '21':2 'asia':4 'india':5 'loc':3
                                    'search_combo'  '00asia':9 '21':10 'asia':12 'from':7C 'hamsadhwani':2A 'india':8C,13 'loc':11 'music':6C 'nagaraja':3B 'rag':1A 'rao':4B 'vintage':5C
                                    'tag_tracknum'  21
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627015.1641378  (2021-05-21 21:56:55)
                             'size'  4319929