======================== unified (from filesystem) ========================
                                         'bitrate'  '173.847'
                                        'duration'  '583'
                                          'artist'  'Dr. N. Rajam'
                                     'text_people'  ''
                                         'release'  "Violin (Maestro's Choice)"
                                           'title'  'Dadra in Raga Bhairavi'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'all']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  '03'
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '142.708'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000015F 00000117 00000CF1'
'COMM:iTunNORM:eng'                                 (' 0000015F 00000117 00000CF1 00000E3C 0006D6B6 00071BE7 00004C85 000042AC '
 '0005F078 0005F078')
'TALB' (Album/Movie/Show title)                     "Violin (Maestro's Choice)"
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TCOP' (Copyright message)                          'Music Today CD A-91020'
'TDRC' (Recording time)                             '1991'
'TENC' (Encoded by)                                 'OM (Jantar using EAC with CRC check and Lame VBR)'
'TIT2' (Title/songname/content description)         'Dadra in Raga Bhairavi'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dr. N. Rajam'
'TRCK' (Track number/Position in set)               '03/03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['spotify', 'all']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.752442'

========================== row from database ==========================
                                              'id'  1392887
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Dr. N. Rajam/Violin/03 dadra in raga bhairavi.mp3
                                         'working'  None
                                         'bitrate'  173
                                    'duration_sec'  583
                                           'genre'  loc-asia-india
                                        'filesize'  12688714
                                           'mtime'  1621629138
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 03 dadra raga bhairavi loc asia india
                                      'tag_artist'  Dr. N. Rajam
                                     'tag_release'  Violin (Maestro's Choice)
                                       'tag_title'  Dadra in Raga Bhairavi
                                             'bpm'  142.708
                                    'search_title'  'bhairavi':4 'dadra':1 'in':2 'raga':3
                                   'search_artist'  'dr':1,2 'n':3,4 'rajam':5
                                  'search_release'  'choice':5,6 'maestro':2 'maestros':4 's':3 'violin':1
                                     'search_rest'  '00asia':1 'asia':6 'bhairavi':4 'dadra':2 'india':7 'loc':5 'raga':3
                                    'search_combo'  '00asia':16 'asia':21 'bhairavi':4A,19 'choice':14C,15C 'dadra':1A,17 'dr':5B,6B 'in':2A 'india':22 'loc':20 'maestro':11C 'maestros':13C 'n':7B,8B 'raga':3A,18 'rajam':9B 's':12C 'violin':10C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['spotify', 'all']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629137.7567472  (2021-05-21 22:32:17)
                             'size'  12688714