======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '432'
                                          'artist'  'Nathamuni Brothers'
                                     'text_people'  ''
                                         'release'  'Madras 1974'
                                           'title'  'Varnam Sami Ninne Raga Shankarabharanam, Tala Adi'
                                           '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-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jugalbandi', 'under 2000 listeners']"
                                     'discogstags'  "['jazz', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1974'
                                        'comments'  ''
                                           'genre'  'loc-asia-india-classical'
                                             'bpm'  '115.130'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000420 00000515 00004B43 00006F99 00034834 00052C14 000075FF 0000761B '
 '0002FEA1 0004C5A1')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009FC 000000000122F9F4 00000000 009E4DB7 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '9+1C71835C82C58760B0BFAF413693BAE4+9636144'
'TALB' (Album/Movie/Show title)                     'Madras 1974'
'TBPM' (BPM (beats per minute))                     '115.130'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india-classical'
'TDRC' (Recording time)                             '1974'
'TIT2' (Title/songname/content description)         'Varnam Sami Ninne Raga Shankarabharanam, Tala Adi'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nathamuni Brothers'
'TRCK' (Track number/Position in set)               '3/9'
'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:discogstags'                                  ['jazz', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['jugalbandi', 'under 2000 listeners']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.81 dB'
'TXXX:replaygain_track_peak'                        '0.576342'

========================== row from database ==========================
                                              'id'  1395281
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Nathamuni Brothers/Nathamuni Brothers - Madras 1974 - 03 - Varnam Sami Ninne Raga Shankarabharanam, Tala Adi.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  432
                                           'genre'  loc-asia-india-classical
                                        'filesize'  10381824
                                           'mtime'  1621626995
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 03 loc asia india classical
                                      'tag_artist'  Nathamuni Brothers
                                     'tag_release'  Madras 1974
                                       'tag_title'  Varnam Sami Ninne Raga Shankarabharanam, Tala Adi
                                             'bpm'  115.13
                                    'search_title'  'adi':8 'ninne':3 'raga':4 'sami':2 'shankarabharanam':5,6 'tala':7 'varnam':1
                                   'search_artist'  'brothers':2 'nathamuni':1
                                  'search_release'  '1974':2 'madras':1
                                     'search_rest'  '00asia':1 'asia':3 'classical':5 'india':4 'loc':2
                                    'search_combo'  '00asia':13 '1974':12C 'adi':8A 'asia':15 'brothers':10B 'classical':17 'india':16 'loc':14 'madras':11C 'nathamuni':9B 'ninne':3A 'raga':4A 'sami':2A 'shankarabharanam':5A,6A 'tala':7A 'varnam':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jugalbandi', 'under 2000 listeners']
                                        'tag_date'  1974
                                     'discogstags'  ['jazz', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621626995.4065366  (2021-05-21 21:56:35)
                             'size'  10381824